types of magnifying lenses

Answers

Answer 1

Answer:

Explanation:

Biconvex lens: Distinguised by two spherical (convex) surfaces. ...

Aspheric Lens: Aspheric curves allow higher magnification with less distortion. ...

Aplanatic Lens: Consists of two equally strong plano-convex lenses. ...

Achromatic Lens: Top quality lens.


Related Questions

Fructose has the formula C6H12O6. How many moles of fructose are there in 0.100 g of fructose?

Answers

Considering the definition of molar mass, there are 0.00055 moles of fructose in 0.100 grams of fructose.

Definition of molar mass

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

Molar mass of C₆H₁₂O₆

In this case, you know the molar mass of the elements is:

C= 12 g/moleH= 1 g/moleO= 16 g/mole

So, the molar mass of the compound C₆H₁₂O₆ is calculated as:

C₆H₁₂O₆= 6×12 g/mole + 12× 1 g/mole + 6× 16 g/mole

Solving:

C₆H₁₂O₆= 180 g/mole

Moles in 0.100 grams of fructose

You can apply the following rule of three: If by definition of molar mass 180 grams of fructose are contained in 1 mole, 0.100 grams of the compound are contained in how many moles?

[tex]amount of moles= \frac{0.100 gramsx 1 mole}{180 grams}[/tex]

amount of moles= 0.00055 moles

Finally, there are 0.00055 moles of fructose in 0.100 grams of fructose.

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Darwin was not the first to suggest that species evolve, but he was the first to suggest:_____.
a. evolution occurs by genetics.
b. cultures rarely evolve.
c. mammals do not evolve.
d. evolution occurs through natural selection.
e. sex is an important component of evolution for all living species.

Answers

Evolution occurs through natural selection.

The correct option is d. evolution occurs through natural selection.

what is species evolve?

The process of evolution is how organisms change over time in response to their environment. Use these strategies to teach your students about the water cycle. The process of evolution is how organisms change over time in response to their environment. Use these strategies to teach your students about the water cycle.

For scientists, the study of evolution is crucial. It includes the investigation of alterations that organisms have undergone over time in response to various environmental influences. Humans and other species alike undergo gradual evolution. Natural selection, which happens during the process of evolution, has shaped every living thing on the planet today.

Darwin’s Finches

Ask the kids to read about and conduct research on the Galapagos finches Darwin observed. Darwin observed that the beaks of various finches varied. He also observed that each variety of beaks was best suited for handling a particular kind of food. Darwin was aware that the finches came originating from South America's continent, but the ones he observed on the islands were distinct from those he had previously seen there. Darwin questioned why these finches changed once they reached the Galapagos Islands. Test the capacity of various beaks to obtain various foods with your kids. Give kids toothpicks, little bird seeds, huge bird seeds (sunflower seeds), foam packing peanuts, metal binder clips, tweezers, and spoons to depict various beak varieties. Have the student experiment with the various instruments to see which one goes best with which foods.

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Select the correct answer from each drop-down menu.
The tool in the photograph is a
. It is used for

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Answer:

going to the earth surface

Answer:

satellite, traveling in space

Explanation:

To perform a certain type of blood analysis, lab technicians must perform two procedures. The first procedure requires either one or two separate steps, and the second procedure requires either one, two, three or four steps. How many experimental outcomes exist for the blood analysis experiment?

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The number of experimental outcomes for the given blood analysis experiment is eight (8).

What is an experimental outcome?

Experiment is a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

After the experiment, the result of the random experiment is known. An outcome is a result of a random experiment.

For the given experiment,

Procedure 1 [n(P1)] can be done one or two steps.

Procedure 2 [n(P2)] can be done in one, two, three or four steps.

So the total number of outcomes (N) in this experiment is;

                     n(P1)= 2 and n(P2)= 4

                     N= n(P1) *n(P2)

                     N= 2*4= 8

The total number of experimental outcomes can also be calculated as (x,y) where ‘x’ is a number of steps of Procedure 1 and ‘y’ is a number of steps of Procedure 2.

Suppose (x,y)= (1,1) means one step is performed of Procedure 1 and one for Procedure 2.

Therefore, (1,1), (1,2), (1,3), (1,4), (2,1), (2,2), (2,3), (2,4) i.e. 8 are the possible outcomes.

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Measures of events that occur in the brain and other parts of the nervous system are called ________ measures.

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Measures of events that occur in the brain and other parts of the nervous system are called neuronal measures.

Information is transmitted via neurons. They communicate between various brain regions and between the brain and the rest of the nervous system through electrical impulses and chemical signals. The intricate circuits of the nervous system are built from originally erroneous neuronal connections, and neural activity is essential for this process. Many common neurodevelopmental diseases, ranging from subtle learning deficits to severe developmental delay, may be caused by disruptions in the development of these specific circuits.The second most well-known method for capturing cerebral activity is electroencephalography, or EEG.

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Which is not a method used to detect extrasolar planets? a. transit photometry b. radial velocity measurements c. direct imaging d. microscopy

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Microscopy is not a method used to detect extrasolar planets.

Methods of detecting exoplanets:

Any planetary body beyond the solar system that typically orbits a star other than the Sun is referred to as an extrasolar planet, often known as an exoplanet. There are 3,779 planetary systems with 3,108 confirmed exoplanets as of 1 July 2022, 826 of which contain multiple planets. The Kepler space telescope was responsible for most of these discoveries.

Exoplanets contain elements that are comparable to those found in our solar system, but their compositions of those elements may vary. Iron or carbon may dominate some planets, whilst water or ice may rule others.

The following methods have at least once proved successful for discovering an extrasolar planet or detecting an already discovered planet:

Radial velocityTransit photometryEllipsoidal variationsPulsar timingVariable star timingTransit timingTransit duration variationEclipsing binary minima timingGravitational microlensingDirect imaging

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Does a person in need of an organ transplant have a moral right to obtain that transplant, supposing the availability of the needed organ?.

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Answer:  

The principle of  “Do no harm.” The only way that removing an organ from someone seems morally defensible is if the donor chooses to undergo the harm of surgery solely to help another.

hunting effects on humans

Answers

Answer:

hunting leads to destruction of ecosystem and increase in the population of a particular spices of animals is also leads to an increase in various microorganisms such as fungi ugly etc with decompose they get bodies of plant and animals

Which of the following is a physical property of a substance?

A. Toxicity
B. Hardness
C. Reactivity
D. Flammability

Answers

B. Hardness. Explanation: A physicaly property is any trait of an object that can be felt. Hardness is the only correct answer.
B.Hardness. I took the test and the other answers are chemical’s

How are fishes, amphibians, nonavian reptiles, birds, and mammals important to humans? how are they important to ecosystems?

Answers

Fishes, amphibians, nonavian reptiles, birds, and mammals are crucial components of numerous ecosystems, particularly as intermediaries in numerous food chains and food webs.

Importance to humans:

Amphibians, particularly anurans, are economically advantageous because they help to decrease the amount of insects that damage crops or spread illness. Fishes and Amphibians serve as a food supply for some human communities, particularly in Southeast Asia, and hence provide provisioning services. They also present promise for new pharmaceuticals including analgesics and anti-viral medications made from skin secretions, as well as function as models in medical research. For food and clothing, humans have relied on other mammal species. Mammals were domesticated to provide a source of nourishment for the expanding human population as well as tools for hard labor and transportation.Birds help people directly by controlling insects and rodents, pollinating plants, and dispersing seeds.

Importance to ecosystem:

Both reptiles and amphibians play a significant role in both terrestrial and aquatic ecosystems. Both groups function as predators and prey, and the species that live in both environments help move energy back and forth between them.The thin skin of amphibians allows them to occasionally breathe through it and allows them to absorb harmful chemicals, radiation, and infections. Because they are the first to be impacted by environmental deterioration, frogs are regarded as "indicator species."Birds help people directly by controlling insects and rodents, pollinating plants, and dispersing seeds.Mammals facilitate carbon sequestration and water body conservation by controlling the populations of other animals and protecting essential plant species.

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How might increased absorption of solar radiation by the atmosphere affect precipitation?
Select one:
O a. Increased absorption of solar radiation would not affect precipitation.
O b. Increased absorption of solar radiation might lead to more rain and freezing rain and
less sleet and snow.
O c. Increased absorption of solar radiation might lead to more sleet and snow and less
freezing rain and rain.
Od. Increased absorption of solar radiation would cause less precipitation.

Answers

increased absorption of solar radiation by the atmosphere can affect precipitation in increasing absorption of solar radiation can lead to more rain and freezing rain and less hail and snow.

B. Increased absorption of solar radiation can lead to more rain and freezing rain and less hail and snow

What is absorption of solar radiation?

Most of the absorption of solar radiation at wavelengths in the infrared range is due to water vapor and occurs in the troposphere, where most of the water vapor is located. This part of the absorption presents great variability due to the distribution of water vapor.

With this information, we can conclude that When solar radiation penetrates the Earth's atmosphere, it undergoes attenuation caused by reflection, scattering and absorption by atmospheric constituents.

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Choose the true statements about the diversity of Darwin's finches on the Galapagos Islands. Check all that apply.

Answers

Prior to the adaptive radiation of finches, there were no unoccupied habitats in the Galápagos Islands.

Beak shape is not an important key innovation.

Charles Darwin's Finches and the theory of evolution

The Galapagos Islands are home to 13 of the world's only Darwin's finches, little land birds that bear his name. The fourteenth finch is the Cocos finch, which lives on the island of Cocos in Costa Rica. They aren't real finches, but rather members of the tanager family.

Natural selection, according to Charles Darwin, is a phenomenon that contributes to evolution. According to the natural selection principle, organisms create more offspring than are capable of surviving in their surroundings.

His journey to the Galapagos Islands was crucial in the formation of his theory of natural selection because he discovered a number of finch species that varied from island to island. The Galapagos Islands are an archipelago of 13 noteworthy islands.

In addition to giant tortoises, iguanas, fur seals, sea lions, sharks, and rays, they are home to 26 species of native birds, 14 of which are Darwin's finches. These finches are recognized as the vertebrates in the entire animal world that have evolved the fastest because of how quickly their look and behavior changed to adapt to this confined and quickly changing environment.

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Describe the chemistry, major food sources, and roles of phospholipids and sterols

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Phospholipids and sterols are very important for human diet.

Phospholipids are molecules connected to fat that include phosphorus, fatty acids, and a base that contains nitrogen. They have a glycerol backbone similar to triglycerides, but instead of three fatty acids, it is joined to two fatty acids and a phosphorus group. Phospholipids are crucial molecules since they make up a crucial part of cell membranes. They support the flexibility and lack of rigidity of organelle and cell membranes. As the majority of a cell's membrane, phospholipids are crucial for cells.Sterols have a distinctive four-ring structure with carbon and hydrogen atoms as its main building blocks. The most well-known sterol is cholesterol, which is essential for cell membrane formation and the building block of many significant chemicals in the body.

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Many organisms have developed resistance to antibiotics. What mode of resistance has mrsa acquired?

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methicillin-resistant-staphylococcus-aureus (MRSA) infection is caused by staphylococcus aureus

MRSA is resistant to the complete beta-lactam class of antibiotics. Methicillin is a member of this class of antibiotics, along with others like the more popularly prescribed penicillin, amoxicillin, and oxacillin.S.aureus also causes pneumonia, mastitis, skin infections, bone infections, and inflammation of the heart's inner lining. S.aureus becomes resistant to antibiotics like methicillin by expressing foreign proteins named PBP (penicillin-binding proteins) resistant to its action. Hence methicillin-resistant-staphylococcus aureus becomes resistant to a wide range of antibiotics makes the treatment choices very limited. The alternatives for the treatment of MRSA are dependent upon lowering the methicillin resistance.

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Visual examination of his chest reveals that the lower portion of the sternum is depressed. Auscultation of the lungs and heart is unremarkable. What disorder of the thorax best describes these findings

Answers

The person might be suffering from pectus excavatum or funnel chest.

Pectus excavatum

The funnel chest is caused by the depression formed towards the lower portion of the sternum. The deformation of the sternum can be symmetrical or one side might be more prominent than the other. Such a condition can affect the normal functioning of the heart and lungs and might induce a feeling of insecurity in the children because of their body shape. Funnel chest is more common in young males than in females and its symptoms include

BreathlessnessChest painFatigueDizzinessTachycardia

It can be present during birth or may develop as the child grows. An X-ray or a CT scan is used to diagnose the patient. Cardiopulmonary exercise testing (CPET), heart scans, breathing tests, etc are used to gauge the severity of the condition. Most often people with such conditions are able to live a normal life.

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Inherited disease can be caused by damage to DNA caused by _________.

DNA Polymerase
B. Okazaki fragments
C. ozone
D. radiation

Answers

Inherited disease can be caused by damage to DNA caused by radiation (option D).

What is mutation?

Mutation is any heritable change of the base-pair sequence of genetic material.

Mutation is a gradual change in the genetic sequence of a nucleic acid that can occur through the following ways;

Replication errors RadiationMutagens

Radiation is the process of radiating waves or particles like X-ray, electron particles.

Therefore, inherited disease can be caused by damage to DNA caused by radiation.

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A nutrient that cannot be made within the body, or made in sufficient quantities is known as:________
a. a critical nutrient
b. a required nutrient
c. an indispensable nutrient
d. an essential nutrient

Answers

Those nutrients that cannot be made within the body or not in sufficient quantities are known as essential nutrients.

An essential nutrient is one that the body cannot generate on its own or cannot do so in sufficient amounts. These nutrients must be supplied from diet. These nutrients are necessary for growth and for the efficient functioning of the organism.

Proteins are used by the body to maintain and repair tissues so that they can grow and produce energy. All of the necessary amino acids are present in complete proteins and proteins with significant biological significance. Meat, eggs, milk, and soybeans are a few examples of such foods. Beans and peas, which are incomplete proteins, do not contain all of the required amino acids and must be coupled with other meals or with one another in a single meal to do so.

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The contraction of striated muscle is initiated by the release of energy in the presence of

Answers

The contraction of striated muscle is initiated by the release of energy in the presence of calcium ion

What is a muscle?

A muscle can be defined as soft and band of fibrous tissue in a human or animal body that has the ability to contract to produce movements of the body parts

I'm conclusion, the contraction of striated muscle is initiated by the release of energy in the presence of calcium ion

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Interpret the following scenario to distinguish between recessive and dominant forms of inheritance. Two unaffected parents that are heterozygous for a genetic disease have a child with the genetic disease. This form of inheritance follows a _____ form of inheritance.

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Interpret the following scenario to distinguish between recessive and dominant forms of inheritance. Two unaffected parents that are heterozygous for a genetic disease have a child with the genetic disease. This form of inheritance follows a recessive form of inheritance.

What is genetic disease?A person needs two recessive alleles to display a recessive trait, yet only one dominant allele can express a dominant trait. Dominant alleles serve as a cover for recessive alleles.When a gene is inherited from only one parent, and a normal gene is inherited from the other parent, the offspring will not have the condition. When a gene is inherited from either parent, the offspring will inherit that genetic condition or characteristic.Long DNA strands are arranged into genes on chromosomes that code for particular characteristics. These particular features can be passed down through the genes as well.When present, dominant behavior is always apparent. Only when dominant genes are absent does recessive gene expression occur.

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In the chesapeake bay and other bodies of water, what is a result of phytoplankton population increases?

Answers

Dead zones are created by hypoxia and the bacterial decay of dead phytoplankton.

What are the effects of excess phytoplankton population?

The Chesapeake Bay, like many other bodies of water, is overrun with nutrients, which results in a type of pollution called eutrophication. Every spring, sewage treatment facilities, farms, and lawns release large amounts of nitrogen and phosphorus into the Bay. These nutrients fuel the growth of algae as the water warms up in the summer, resulting in blooms that deplete the water's oxygen content and create sizable "dead zones" where fish, crabs, and other aquatic life find it challenging to survive. During these times, some of the mud's surface layers and portions closer to the bottom may become anoxic, meaning there is no oxygen present at all.

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If you classify individuals by type of cerebral palsy, this variable would be considered.

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Cerebral Palsy is often classified by severity level as mild, moderate, severe, or no CP.

What is cerebral palsy?

A series of conditions known as cerebral palsy (CP) have an impact on a person's mobility, balance, and posture. The most typical motor impairment in children is cerebral palsy. Cerebral refers to something involving the brain. Palsy refers to muscle weakness or functional issues.

Main cause:Typically, a condition that interferes with a developing baby's brain in the womb results in cerebral palsy. These include periventricular leukomalacia, which is damage to the white matter of the brain, possibly as a result of a decreased blood or oxygen supply (PVL)

Life expectancy of a person with cerebral palsy ranges from 30 years to 70 years.

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which part of eubacteria is responsible for helping the cell to move

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There are some structures that can be responsible for moviment on bacterias, the most common are flagella, cilium and also pili.

What is an Eubacteria?

Eubacteria are part of one of the groups of Kingdom Monera (the other group is Archaea). These bacteria are prokaryotic organisms and represent the largest number of species within the Monera Kingdom. All bacteria (excluding archaebacteria) and cyanobacteria are part of the Eubacteria Group.

They are unicellular organisms that do not have a defined nucleus or membranous organelles. They can be classified according to their shape, with the most common shapes being spherical, rod and spiral.

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Discussion of the observations of an experiment of epidermal cell of onion bulb

Answers

Solution
Cut open an onion.
Use forceps to peel a thin layer of epidermis from the inside.
Lay the layer of epidermis on a microscope slide.
Add a drop of iodine solution to the layer.
Carefully place a coverslip over the layer.
Observe it under a microscope to see onion cells.

Because of the ability to identify and quantify proteins in a complex mixture, mass spectrometry combined with separation methods is an excellent analytical tool used specifically in the field of

Answers

Because of the ability to identify and quantify proteins in a complex mixture, mass spectrometry combined with separation methods is an excellent analytical tool used specifically in the field of Proteomics.

Proteomics based on mass spectrometry is now the method of choice for identifying and measuring an organism's proteome. There are many chances for statisticians to make substantial contributions, even if recent years have seen a dramatic advance in instrument performance and the computational techniques employed.The most popular "bottom-up" method for proteomics involves enzymatic cleavage of complex protein mixtures, followed by the separation of the peptide products based on their physical or chemical characteristics and mass spectrometric analysis. Identifying the proteins that are present in a sample and quantifying the abundance levels of the detected proteins are the two main difficulties in the analysis of bottom-up MS-based proteomics.

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Which human action has not lead to significant changes in earth’s biomes? a. agriculture b. burial practices c. pollution d. large-scale fishing

Answers

A, most agriculture constists of digging and mining and therefor most biomes and habitats are destoryed and ruined for the sake of africulture

how does the cardiovascular system help the body maintain hormoestasis

Answers

Answer:

The cardiovascular system helps maintain homeostasis by continually supplying the central nervous system--the brain and spinal cord--with oxygen and glucose. Brain cells start dying after just one minute without oxygen. The brain is the control center for all of the body's homeostatic processes.

Jean-auguste-dominique ingres’s portrayal of the woman in grande odalisque ________ her body.

Answers

Jean-auguste-dominique ingres’s portrayal of the woman in grande odalisque represents a feminist analysis of her body.

An odalisque, or concubine, is shown in Jean-Auguste-Dominique Ingres' 1814 oil painting titled La Grande Odalisque. He created it while in Italy for Caroline Murat, the sister of Napoleon and Queen of Naples.The piece was regarded by Ingres' contemporaries as a departure from Neoclassicism and a turn toward exotic Romanticism.

When Grande Odalisque was initially exhibited, it received harsh criticism.It is notorious for having stretched-out dimensions and lacking realistic anatomical detail. The Louvre Museum in Paris is the owner of the piece, which it acquired in 1899.

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You are studying two populations of dung beetles, one of which rolls their dung balls at noon, resting at night, and the other of which reverses this. These could speciate due to

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You are studying two populations of dung beetles, one of which rolls their dung balls at noon, resting at night, and the other of which reverses this. These could speciate due to temporal isolation.

What about temporal isolation?When two or more species reproduce at different times, this is known as temporal isolation. For instance, the same rain forest is home to three different orchid species. Each species possesses one-day-only blooms that need to be pollinated on that day in order to produce seeds.Temporal isolation prevents interbreeding between individuals from different species due to differences in timing, even if those individuals may occupy the same geographic area.When two populations have divergent reproductive cycles or active seasons, this is known as temporal isolation. For instance, because wood frogs and leopard frogs reach sexual maturity at separate periods in the spring, they are unable to hybridize.

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---------------- is the finest material can be blasted more than 20 kilometers into the atmosphere and carried much farther downwind than the larger blocks which fall to earth on the volcano itself.

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Pyroclastic materials are classified according to their size, measured in milli meters: dust (less than 0.6 mm [0.02 inch]), ash (fragments between 0.6 and 2 mm [0.02 to 0.08 inch]), cinders (fragments between 2 and 64 mm [0.08 and 2.5 inches], also known as lapilli), blocks (angular fragments greater than 64 mm), and bombs (rounded fragments greater than 64 mm).

The fluid nature of a pyroclastic flow is maintained by the turbulence of its internal gases. Both the incandescent pyroclastic particles and the rolling clouds of dust that rise above them actively liberate more gas. The expansion of these gases accounts for the nearly frictionless character of the flow as well as its great mobility and destructive power.

Pyroclastic flow, in a volcanic eruption, a fluidized mixture of hot rock fragments, hot gases, and entrapped air that moves at high speed in thick, gray-to-black, turbulent clouds that hug the ground. The temperature of the volcanic gases can reach about 600 to 700 °C (1,100 to 1,300 °F). The velocity of a flow often exceeds 100 km (60 miles) per hour and may attain speeds as great as 160 km (100 miles) per hour.

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On the basis of clinical trials, the probability of efficacy of a new drug is:_______

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On the basis of clinical trials, the probability of efficacy of new drug is 0.81. According to efficacy trial data which select patients for treatment under advantageous  conditions for short time period.

Drug is a chemical substance that causes a change in an organism's when it consumed and it can benefited ( uses as a medicine)  or it can be harmful. For this reason drug is tested on the bases of trial.

The main purpose of clinical drug testing to check for drug use and misuses, so that it promotes safety,etc.It used to treat cure, prevent or diagnosis a disease.

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Other Questions
The Cauchy stress tensor components at a point P in the deformed body with respect to the coordinate system {x_1, x_2, x_3) are given by [sigma] = [2 5 3 5 1 4 3 4 3] Mpa. Determine the Cauchy stress vector t^(n) at the point P on a plane passing through the point whose normal is n = 3e_1 + e_2 - 2e_3. Find the length of t^(n) and the angle between t^(n) and the vector normal to the plane. Find the normal and shear components of t on t he plane. Which technique improves system resource utilization by holding active programs in memory while the programs waiting for I/O completion or for an event to take place? a. Time-sharing b. Sequential execution c. Multiprogramming d. Multitasking in problems 114, solve the given initial value problem using the method of laplace transforms. 1. y - 2y 5y = 0 ; for the threestep sn1 reaction, draw the major organic product, identify the nucleophile, substrate, and leaving group, and determine the rate limiting step. Given an array of integers A [0...n-1], consider the following puzzle: pick elements of A to obtain the largest possible sum, subject to the constraint that you cannot pick 3 or more elements in a row. For example, if the array were A = [2,3,3,2, -1], then the largest sum we could get is A[0] +A[1] +A[3] = 2 + 3 + 2 = 7; we can't pick index 2 instead of (or in addition to) 0 to get a larger sum since we would then have picked 3 elements in a row. Let's solve this puzzle using dynamic programming. (a) (30 pts.) Let S(i) be the largest possible sum one can get when picking elements of A[O...), without picking > 3 elements in a row. Derive a recursive formula for S(i), making sure to include any base cases. (b) (20 pts.) Based on your answer to part (a), describe an efficient algorithm to solve the puzzle. Your algorithm should return the list of indices to pick. (c) (10 pts.) What is the asymptotic runtime of your algorithm? which ion initiates muscle contraction by moving regulatory proteins away from the actin binding sites a. na b. ca c. k d. cl- e. all of the above If 1 mg of lorazepam produces the same anxiolytic response as 10 mg of diazepam, which is correct?A. Lorazepam is more potent than is diazepam.B. Lorazepam is more efficacious than is diazepam.C. Lorazepam is a full agonist, and diazepam is a partial agonist.D. Lorazepam is a better drug to take for anxiety than is diazepam. what is the length of a box in which the minimum energy of an electron is 1.41018 j ? is it ethical to sell stock to outsiders at a higher price than the amount paid by the organizers? yes/no Which hormone would NOT be produced if you blocked the activity of 5-alpha- reductase? Select one: a. Testosterone b. Estradiol c. Progesterone d. DHT What is the number of weak compositions of 2n into 2k parts from which 2 are even and the others are all odd A group of workers can plant 35 acres in 7 days. What is their rate in acres per day? The biomass gained by plants that is used for growth and reproduction is called: Net Primary Production Gross Primary Production Net Ecosystem Production Gross Net Production None of the above 3CaCl2(aq)+2Na3PO4(aq)6NaCl(aq)+Ca3(PO4)2(s)How many liters of 0.20molCaCl2 will completely precipitate the Ca2+ in 0.50Lof0.20MNa3PO4 solution? minerals needed in amounts less than 20 milligrams daily--iron, zinc, selenium, fluoride, chromium, copper, manganese, and molybdenumare classified as How many of the following substances are strong Bases? KOH(aq) NH4OH (aq) HNO2(aq) NaCl(aq) H2504 (aq) Ca(OH)2 (aq) Mg(OH)2 (aq) Al(OH)3 (aq) 6 4 2 3 a sound wave in air has a frequency of 510 hz and a wavelength of 0.66 m. what is the air temperature? Explain how the tectonic plates move using the following terms: convection currents, magma, less dense, more dense, conveyor belt insomnia and education. is insomnia related to education status? researchers at the universities of memphis, alabama at birmingham, and tennessee investigated this question in the journal of abnormal psychology (feb. 2005). adults living in tennessee were selected to participate in the study, which used a random-digit telephone dialing procedure. two of the many variables measured for each of the 575 study participants were number of years of education and insomnia status (normal sleeper or chronic insomniac). the researchers discovered that the fewer the years of education, the more likely the person was to have chronic insomnia. a. identify the population and sample of interest to the researchers. b. identify the data collection method. are there any potential biases in the method used? c. describe the variables measured in the study as quantitative or qualitative. d. what inference did the researchers make? Copy and paste your code from the previous code practice. If you did not successfully complete it yet, please do that first before completing this code practice.After your program has prompted the user for how many values should be in the list, generated those values, and printed the whole list, create and call a new function named diffList. In this method, accept the list as the parameter. Inside, you should add up the negatives of all the values in the list and then return the result back to the original method call. Finally, print that difference of values.Sample RunHow many values to add to the list: 8[117, 199, 154, 188, 155, 147, 111, 197]Total -1268My Previous Code:import randomdef buildList(num1, num2): for i in range(num2): num1.append(random.randint(100, 199)) return num1x = int(input("How many values to add to the list: "))list = []buildList(list , x)print(list)list.sort()print(list)