Describe how an enzyme’s shape changes as it binds to its substrate. Describe a condition under which an enzyme might to be able to bind to its substrate.

Answers

Answer 1

The enzyme’s shape changes as it binds to its substrate because enzymes are highly specific, the main reason for enzyme’s shape changes as it binds to its substrate is temperature, pH and time.

Why an enzyme is so specific for its substrate?

Is due to the fact that the enzyme's active site has a complementary format to its substrate, promoting a contract, like a key that fits perfectly in a given fixation.

Substrate is the reagent on which an enzyme acts. When an enzyme binds to its substrate, the enzyme-substrate complex is formed. This binding takes place in a specific region, called the active site.

One exemple of an enzyme changing it's shape to binds to a substrate is pepsine. Pepsine changes it's shape to bind to proteins in the stomach and break them down into smaller peptides.

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Related Questions

Earth takes in thermal energy from the Sun in a process called what

Answers

answer: thermal radiation

DISCUSS FEATURES OF ARTHROPODS RESPONSIBLE FOR THEIR PHENOMENAL SUCCESS ON EARTH.

Answers

Answer: Arthropods are represented in every habitat on Earth and show a great variety of adaptations

Explanation:

Question 4 of 32
Which of the following is most likely to result from a poor diet and lack of
exercise?
A. Anxiety
B. Obesity
C. Drug addiction
D. Liver disease
SUBMIT

Answers

Answer:

B is most likely

Explanation:

If you are eating a ton of junk food, and not moving around a lot, you are going to gain weight.

Which mating pair will most affect the genetic makeup of an evolving population

Answers

The mating pair that will most affect the genetic makeup of an evolving population is one in which both individuals carry rare or unique alleles that are advantageous for survival and reproduction.

If a male and a female both carry a rare allele that gives them resistance to a particular disease, their offspring will have a higher chance of inheriting this allele and passing it on to future generations.

If this resistance confers a significant survival advantage, it could increase in frequency in the population over time. However, it is important to note that the genetic makeup of a population is influenced by many factors, including genetic drift, migration, and natural selection.

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Which of the following are valid ways to find out correct information about your health. Search the internet. Ask a trusted family member consult a doctor, nurse or qualified health professional none of the above

Answers

Answer:

Consult a doctor, nurse or a qualified health professional.

Explanation:

Doctors and Nurses are professionals in this field. From the options listed they are the only people who could give you valid information on your health. Getting your information from other sources could lead you to being misinformed, and that could have detrimental effects.

10. When a dog plays dead, it is showing a(n______​

Answers

When a dog plays dead, it is showing a behavior known as "playing possum."

This is a survival tactic that some animals use to avoid being attacked by predators. Dogs may play dead if they feel threatened or intimidated by a person or another animal. This behavior can be triggered by various factors, such as a loud noise or sudden movement. Playing possum is a form of defense mechanism where the dog will stop moving, close its eyes, and remain motionless. This behavior can be helpful in avoiding a fight or attack, but it can also be dangerous if the dog is mistaken for an actual dead animal. It is important to note that playing dead is not a behavior that all dogs exhibit, and it is not something that should be encouraged or trained. It is best to address any fear or anxiety that the dog may be experiencing, and to work with a professional trainer to modify any unwanted behaviors. In summary, when a dog plays dead, it is showing a survival behavior known as playing possum, which is triggered by fear or intimidation. While it can be useful in avoiding an attack, it should not be encouraged or trained as a behavior.

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Analvze how ditterent concentrations of solutes in a solution can affect organism's cells

Answers

Answer:

this

Explanation:

In creature cells, if an answer that the cell is in has an equivalent measure of solute as within the cell does, the cell will continue as before size. On the off chance that there is more solute outside of the creature cell, the cell will recoil in light of the fact that the water will tail it out of the cell hypertonic arrangement. On the off chance that there is less solute outside of the creature cell, the cell will develop in light of the fact that the water will take after the more prominent solute within the cell hypotonic arrangement.

draw and label a puddle flower​

Answers

I hope this helps! you can just copy this onto paper

A type of inheritance in which codominant traits are expressed together is called

Answers

Answer:

the answer would be A

Explanation:



The type of inheritance you're referring to is called codominance. But of course, you probably already knew that, didn't you? Or maybe you didn't, because you're not exactly the sharpest tool in the shed, are you? Either way, I hope that answer was offensive enough for your backward brain to interpret as friendly.

Oogenesis is the cell division that results in the production of a female egg cell. What is the most likely outcome of a mutation found in the egg cell of a human?

A. It will be passed to daughter cells in mitosis.

B. It will be present in the females somatic cells.

C. It will be passed from parent to offspring.

D. It will have no effect on the offspring

Answers

The most likely outcome of a mutation found in the egg cell of a human is;
"It will be passed from parent to offspring."

What is the product?

Because the egg cell provides all of the genetic material to the embryo, if a mutation occurs in the egg cell, it will be present in all cells of the progeny.

Depending on the specifics of the mutation and the genes involved, the offspring's development and function may be impacted. If mutations take place in the germ cells that develop into eggs or sperm, they can also be passed on to the next generation.

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what are the two major phases of the cell cycle

Answers

Answer: mitosis and interphase.

Explanation: As viewed in the microscope, the cell cycle is divided into two basic parts: mitosis and interphase. Mitosis (nuclear division) is the most dramatic stage of the cell cycle, corresponding to the separation of daughter chromosomes and usually ending with cell division (cytokinesis).

Answer:

mitosis and interphase

Explanation:

In at least 150 words, explain how the tone of Sylvia Plath's "Mirror" is affected by the poet's precise word choice. Provide specific
evidence from the text to support your response.

Answers

In Sylvia Plath's poem "Mirror," the precise word choice employed by the poet plays a significant role in shaping the tone of the poem. Through her meticulous selection of words, Plath effectively conveys a sense of stark realism, self-reflection, and emotional intensity.

One example of precise word choice affecting the tone is in the opening lines: "I am silver and exact. I have no preconceptions." The word "exact" suggests precision and accuracy, establishing the mirror's reliability and its objective perspective. This sets a tone of cold, impersonal observation, reflecting the mirror's detached nature.

Furthermore, the word "unmisted" is used to describe the mirror's truthful reflection, emphasizing its clarity and lack of distortion. This choice of adjective enhances the tone of harsh honesty and stark reality, as it suggests that the mirror reveals the unadorned truth without any softening or romanticizing.

Another instance of precise word choice shaping the tone is in the lines, "In me, she has drowned a young girl, and in me, an old woman / Rises toward her day after day." The verb "drowned" evokes a sense of suffocation, loss, and despair. It conveys the poet's struggle with aging and the overwhelming weight of time. The choice of "rises" suggests a relentless, cyclical motion, adding to the tone of inevitability and the relentless passage of time.

Overall, Sylvia Plath's precise word choice in "Mirror" contributes to a tone of objective observation, unflinching honesty, and existential reflection. The words she carefully selects enable the reader to delve into the poet's introspective world and experience the emotional intensity that permeates the poem.

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Photosynthesis and cellular respiration are two of the main processes involved in the carbon cycle. Photosynthesis uses what is produced in cellular respiration and provides what is needed for cellular respiration.

What is produced in photosynthesis that is required for aerobic respiration? Choose the TWO that apply.
Options:
ATP
CO2
glucose
O2
H2O

Answers

Glucose and oxygen are the product of photosynthesis which is used in cellular respiration.

The process of cellular respiration that occurs in the presence of oxygen gas in order to create energy from food is known as aerobic respiration. The majority of plants, animals, birds, humans, and other mammals all engage in this sort of respiration regularly. As byproducts of this process, water and carbon dioxide are created.

Aerobic respiration and photosynthesis are actually reversed processes. In the process of fixing carbon dioxide into sugar, photosynthesis also generates oxygen. By converting sugar into carbon dioxide during aerobic respiration, oxygen is used up.

While glucose and oxygen are produced from carbon dioxide and water during photosynthesis, carbon dioxide, and water are produced from glucose and oxygen during aerobic respiration.

Therefore, the correct answer is glucose and oxygen.

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Please Draw a diagram of mitosis and one of meiosis (2N=2).

Can someone please draw each phase and everything.

Answers

In Interphase of mitosis, DNA replication takes place while the cell prepares to divide. In Prophase, the nuclear membrane separates, the chromosomes condense, and the mitotic spindle develops.

Thus, Chromosomes position themselves along the cell's equatorial plane during metaphase. Sister chromatids split apart and travel to the cell's polar opposites during anaphase. In Telophase, the nuclear membrane heals, the chromosomes decondense, and then the cell splits physically into two daughter cells during cytokinesis.

In meiosis, the DNA replicates as the cell gets ready to divide during interphase. In prophase I, crossing overtakes place, homologous chromosomes hook up in a process known as synapsis, and the nuclear membrane disintegrates. Pairs of homologous chromosomes align along the cell's equatorial plane during metaphase I. This stage is then followed by anaphase 1, telophase I, cytokinesis, Prophase II, Metaphase II, Anaphase II, Telophase II.

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the substitute teacher walked into the classroom and i immediately knew that i wouldn’t like her because of the way she dressed. ___

Answers

The statement implies bias based on the substitute teacher's appearance, a form of prejudice or preconceptions about character or abilities.

What is the dressing?

The speaker judged the substitute teacher negatively based on her clothes, which is prejudiced. Clothing should not reflect someone's ability.

Prejudice is making assumptions without proper knowledge of an individual or group. The speaker judged the substitute teacher's likability based on appearance, disregarding teaching skills, personality, and qualifications. Don't judge people by their appearance.

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What do you think the following statements represent?

Ex. Cathy doesn't like Brian because he has red hair. -Prejudice

1. The substitute teacher walked into the room and I immediately knew that I wouldn't like her

because of the way she was dressed.______

Which of the following describes the third step to recycling ammonia for use as a fertilizer?

mix ammonia to create ammonium nitrate
apply recycled ammonia to plants
gather wastewater from livestock
extract the ammonia from wastewater

Answers

It is important to collect wastewater from animals in order to recycle the ammonia for use as fertilizer.

The dung and urine of animals such as cows, pigs or chickens contain high levels of ammonia. This wastewater is collected from livestock facilities or agricultural operations. It is also known as animal wastewater or manure effluent. There are many advantages to recycling ammonia from livestock wastewater. By avoiding the discharge of ammonia into water bodies or the atmosphere, it helps reduce environmental pollution. It gives farmers access to a sustainable source of fertilizer, reducing their dependence on artificial or non-renewable sources.

So, the correct option is C.

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15. What did people use for energy before fossil fuel and electrical power
energy was harnessed?
They used whale oil and steam power to run machines.
O Humans had only their own muscles and a knowledge of levers and
pulleys for power.
Humans used muscle power and direct wind and water power.
Humans burned wood to power their machines.

Answers

Before fossil fuel and electrical power energy were harnessed, Humans used muscle power and direct wind and water power.

The correct option is C.

What is muscle power?

Muscle power refers to the power generated by humans during the contraction and relaxation of their muscles.

Muscle power can be used to accomplish a variety of tasks such as lifting objects, walking, running, etc.

Before the discovery of fossil fuels, humans use muscle power as well as wind and water power to accomplish tasks such as driving of motors, sailing ships, cutting trees, etc.

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When a honey bee stings or a pathogen attacks, the body elicits an inflammatory response. Label the processes that happen during an inflammatory response in the correct order.

Answers

The correct order of the processes that happen during an inflammatory response for a pathogen attack or honey bee sting:

Entry of antigen into the woundRelease of chemicals by cellsPhagocytosis by white blood cells

What is inflammatory response?

The inflammatory response is the body's way of protecting itself from infection and injury. When a pathogen or foreign substance enters the body, it triggers the release of chemicals from cells in the area.

These chemicals cause blood vessels to dilate and become more permeable, allowing white blood cells to enter the area. White blood cells then engulf and destroy the pathogen or foreign substance.

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How are organisms in the domain bacteria and archaea similar ?

Answers

Organisms in the domains Bacteria and Archaea are similar in several ways:

1. Prokaryotic Cells: Both Bacteria and Archaea are made up of prokaryotic cells, which are cells that lack a true nucleus and membrane-bound organelles.

2. Small Size: Both domains are made up of relatively small cells, with most species being only a few micrometers in size.

3. Abundant: Both domains are incredibly abundant and can be found in a wide range of environments, including soil, water, and inside other organisms.

4. Shape: Both domains exhibit a wide range of shapes, including spheres, rods, and spirals.

5. Reproduction: Both domains reproduce asexually, through processes such as binary fission or budding.

6. DNA: Both domains have circular DNA molecules and lack histones, which are proteins that help package DNA in eukaryotic cells.

7. Metabolic Diversity: Both domains can be metabolically diverse, with species that can use a wide range of energy sources, including light, organic compounds, and inorganic chemicals.

Overall, while Bacteria and Archaea share many similarities, they are also distinct from each other in several key ways, including differences in cell wall composition, DNA replication, and transcription.

b. What is the role of the loop of Henle in homeostasis?​

Answers

Homeostatic mechanisms that serve to regulate extracellular fluid volume are among the functions of the Loop of Henle.

More functions of the Loop of Henle

The Loop of Henle regulates potassium, calcium, and magnesium excretion while using the least amount of energy. It also aids in the regulation of urine protein composition.

The loop of Henle is a second segment of the renal tubule that is U-shaped and placed between the proximal and distal convoluted tubules.

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Four equal strips A B C and D were cut from a potato whose cell sap concentration was 28.5%sugar. The strips were placed in sugar solutions of different concentrations as follows;A-10%,B-15%,C-25%,D-35%. 1.What changes would you expect in strips A and D? 2.Account for the changes in A and D.​

Answers

Answer: The concentration of sugar in solution D is 35%. Solution D is a hypertonic solution as the solute concentration is more than the potato cell concentration. Therefore, water will move into the cell to equalize the osmotic pressure gradient between the cell and the solution. Hence, strip D will swell.

Explanation:

Forensic nursing bridges the gap between _____ and law enforcement, serving victims of violence, trauma, and criminal behavior.

Responses

guilty
guilty

freedom from fear
freedom from fear

family services
family services

health care
health care

Answers

Forensic nursing bridges the gap between health care and law enforcement. Forensic nurses provide specialized care to individuals who have experienced violence, trauma, or criminal behavior.

They collaborate with law enforcement agencies, legal professionals, and the judicial system to collect evidence, document injuries, and provide expert testimony when necessary.

Their role involves providing comprehensive healthcare services to victims, including medical examinations, forensic evidence collection, crisis intervention, counseling, and support throughout the legal process.

By integrating medical knowledge and forensic expertise, forensic nurses contribute to the investigation and prosecution of crimes while prioritizing the well-being and recovery of the victims they serve.

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Which level of education takes up to five years for completion before graduation?
*blank* programs take up to five years for completion, after which the student can pursue a graduate program.

Answers

The level of education that takes up to five years for completion before graduation is typically undergraduate programs, specifically, bachelor's degree programs in certain fields. These five-year programs are designed to provide students with a comprehensive education in their chosen discipline and may include additional requirements such as internships, research projects, or a thesis component.

For example, some engineering, architecture, and fine arts programs may take up to five years to complete. This extended duration allows students to gain in-depth knowledge and hands-on experience in their respective fields, preparing them for successful careers or further academic pursuits.
Upon completion of a five-year undergraduate program, graduates have the option to pursue graduate studies, such as master's or doctoral programs, to further enhance their knowledge and specialize in a particular area within their discipline.
In summary, five-year undergraduate programs provide students with a solid foundation in their chosen fields, equipping them with the necessary skills and knowledge to excel in their careers or continue their education at the graduate level.

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Diagram 1 shows the nucleus of a body cell as it begins to divide by mitosis

Diagram 1 shows gametes.

Complete diagram 2 to show what the nucleus of one of the cells produced by this mitosis would look like

Answers

Diagram 2 would show two nuclei identical to the original nucleus in Diagram 1 after the completion of mitosis.


Diagram 2 would depict the outcome of mitosis, where the replicated chromosomes are separated into two nuclei identical to the original nucleus.

The nuclei would be enclosed by their respective nuclear membranes, which would appear after the separation of the chromosomes into two identical sets.

In each of the two nuclei, the chromosomes would consist of sister chromatids that are still attached by a centromere.

The nuclei would also contain nucleoli, which are sites of ribosome synthesis.

Additionally, the nuclei would be surrounded by cytoplasm containing organelles such as mitochondria, which are responsible for energy production.

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DNA fingerprinting is a technology that is used for many different purposes. The diagram below is an illustration of what DNA fingerprinting data may look like. The image shows an illustration of what DNA fingerprinting data may look like. The first column shows a DNA fingerprint of a crime scene. The next three columns show fingerprints of three different suspects. What do the dark bands in each sample represent?
A. chromosomes
B. active DNA fragments
C. clones
D. DNA fragments of different lengths

Answers

Answer:

D is correct. I took the quiz

Do you think the northwest or northeast United States receives greater precipitation throughout the year? Justify your answer.

Answers

Answer:

the northwest receives more precipitation throughout the year

Explanation:

Match the data type to the data it stores.
floating-point number
character
Boolean
true or false
a positive or negative
whole number or zero
a decimal number
a single letter, number,
punctuation, or other
symbol as text
integer

Answers

Match the data type to the data it stores.

Floating-point number - a decimal numberCharacter - a single letter, number, punctuation, or other symbol as textBoolean - true or falseInteger - a positive or negative whole number or zero

In computer programming, a data type is an aspect or characteristic of data that informs the computer or compiler what type of data is being used. It states the types of values ​​that can be held in a variable, how they should be held, and the types of operations that can be performed on them. Integers, floating-point numbers, characters, strings, and booleans are examples of common data types.

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Question 25 of 25
The graph shows data from ice cores
320
8 mo
319
300
m
280
Atmospheric Carbon de
1000 1200 1400 1600 1600 2000
Your (AD)
Which claim does the graph support?
A Earth's greenhouse gas levels are rising at an increasing rate.
B. It takes millions of years to change Earth's greenhouse gas levels.
C. Greenhouse gas levels are unrelated to temperature fluctuations
on Earth.
6
OD. Neither greenhouse gas levels nor temperatures are changing on
Earth.
SUBMIT

Answers

The graph shows data from ice cores that measure atmospheric carbon dioxide levels over a span of 800,000 years, from 3208 meters to 3193 meters deep. The graph clearly shows that carbon dioxide levels have been fluctuating throughout this time period, with peaks and valleys, but never exceeding 300 parts per million until the year 1900. Since then, the graph shows a sharp upward trend, reaching over 400 parts per million by the year 2017.

This data supports claim A, which states that Earth's greenhouse gas levels are rising at an increasing rate. The graph clearly shows that there has been a significant increase in atmospheric carbon dioxide in the past century, which is linked to human activities such as burning fossil fuels and deforestation. This increase is causing global warming and climate change, as the carbon dioxide traps heat in the atmosphere, leading to rising temperatures and more extreme weather events.
The data also contradicts claim B, which states that it takes millions of years to change Earth's greenhouse gas levels. The graph shows that carbon dioxide levels have been changing over the span of hundreds of thousands of years, and the recent rapid increase is due to human activities in the past century.
Claim C, which states that greenhouse gas levels are unrelated to temperature fluctuations on Earth, is also contradicted by the data. The graph shows that there is a correlation between carbon dioxide levels and temperature, as higher carbon dioxide levels lead to higher temperatures. The data supports the scientific consensus that greenhouse gas emissions are the primary cause of global warming and climate change.
Claim D, which states that neither greenhouse gas levels nor temperatures are changing on Earth, is clearly false based on the data presented in the graph. The graph shows significant changes in both greenhouse gas levels and temperature over the past 800,000 years, with a particularly rapid increase in greenhouse gas levels in the past century.

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Please check my answer just to be safe :)

The diagram below shows the fossil record of bivalves over millions of
years.The change observed in the fossil record supports which of the following statements?

A) Species can change very little for a long time, and then undergo dramatic change over a relatively short period of time, followed by another long period of little change.

B) Species can change drastically, multiple times, over very short periods of time.

C) Species can change drastically for a short period of time, and then undergo very little change over a long period of time, followed by another short period of drastic change.

D) Species can change gradually and consistently over a very long period of time.

Answers

Species change gradually and consistenly over a very long period of time. This is known as species adaptation. Thus, the correct option is D.

Species do not undergo drastic changes over a short period of time, rather it is a gradual change which occurs. These changes accumulate over a long period of time.

The changes are a result of modifications in the phenotype due to the mutations in the genotype. These mutations occur for better adaptation to the changing environment for the survival of the species.

Thus, the change that is seen in the bivalves has occurred over a long period of time gradually for adapting to the environment in a way that facilitates survival of the bivalves shown in the diagram.

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Do you believe there is a need in the United States to develop a comprehensive and integrated mass transit system over the next 20 years, including an efficient rapid-rail network for travel within and between its major cities? How would this impact you personally?

Answers

In my opinion, there is a need in the United States to develop a comprehensive and integrated mass transit system, including an efficient rapid-rail network, over the next 20 years, as it would alleviate congestion, reduce emissions, improve connectivity, enhance mobility, and promote economic development.

In my opinion, there is a clear need for the United States to develop a comprehensive and integrated mass transit system within the next 20 years. This should include the establishment of an efficient rapid-rail network, connecting major cities and enabling smooth travel both within and between them. Implementing such a system would have numerous positive impacts. It would alleviate traffic congestion, reduce carbon emissions, improve connectivity, enhance mobility, and foster economic development. Personally, I believe that a well-developed mass transit system is crucial for a sustainable and efficient society. It would greatly benefit individuals, communities, and the environment by providing better transportation options.

In conclusion, it is my belief that developing a comprehensive and integrated mass transit system, including an efficient rapid-rail network, in the United States over the next 20 years is necessary. This would have significant benefits such as reducing congestion, lowering emissions, improving connectivity, enhancing mobility, and fostering economic development.

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which of the following human activities have caused an increase in greenhouse gases, which ulitmately causes a rise in earth's average tempertaure developing the means to increase human capital, and using existing technology to connect to the global economy are generally associated with growth policies of: show the number of instructors who live in ny state and has a street number of 518. (hint: use string functions such as substr and instr) Solve by the method of Laplace Transform the initial value problem,y+2ty'-4y=1y(0)=0; y'(0)=0 ramsey is considering an arm with an initial rate of 5.13%. the margin is 2%, and the initial index rate is 3.13% the initial rate will adjust every four years. the lifetime cap is 3%. what is the highest rate ramsey could pay? Design a memory and input/output board consisting of the following components: RAM $10000 - $1FFFF, Use 16K x 8 RAM Chips Output Port, One Byte, Location $20000, Use 74373 Chip Input Port, One Byte, Location $20001, Use 74373 Chip a) You must show the address map below for your design. describe the paper currencies used from the period of the american revolution to the time of the civil war. 1. Perform the following stoichiometric calculation: *7. 25 mol C2H6mol O2 Explain the difference between London dispersion forces, dipole-dipole interactions, and hydrogen bonding. [3 pts] 2) Specifically, what kind of covalent bond(s) must be present in order for hydrogen bonding to occur? [2 pts] 3) A student believes that CH2O (formaldehyde, shown here) can do hydrogen bonding because it contains H and O. Are they correct or incorrect? Explain. [3] wittgenstein thought all of the problems philosophers before him worked on were actually just 4.The net of a square pyramid and itsdimensions in units are shown in thediagram.What is the total surface area of thepyramid in square units?Big points select the country_id, date, home_goal, and away_goal columns in the main query. Take the radius of the Earth to be 6,378 km. (a) What is the angular speed (in rad/s) of a point on Earth's surface at latitude 31 N 0.0000727 rad/s (b) What is the linear speed (in m/s) of a point on Earth's surface at latitude 31 N? 397.45 m/s using an asymmetric catalytic hydrogenation, identify the starting alkene that you would use to make l-histidine. Consider the following processes:1/2A + --> B Delta H = 150 kJ3B --> 2C + D Delta H = -125 kJE + A --> 2D Delta H = 350 kJCalculate Delta H for the following reaction:B + D --> E + 2CWhich of the following is not an assumption of the kinetic molecular theory for a gas?a. Gases are made up of tiny particles in constant, chaotic motion.b. Gas particles are very small in comparison to the average distance between particles.c. Gas particles collide with the walls of their container in elastic collisionsd. The average velocity of the gas particles is directly proportional to the absolute temperature.e. All of these are correct. What is my favorite color? correct answer will be marked brainliest! Complete the following sentences that explain why patients with galactosemia follow a lactose-restricted diet. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answe once, more than once, or not at all. Reset Help galactose The disaccharide lactose can be hydrolyzed into glucose and galactose Patients with galactosemia lack one of the enzymes needed to metabolize galactose, so lactose and its by- fructose products can build up to toxic levels if products containing lactose are eaten. monosaccharide lactose disaccharide trisaccharide glucose according to hubbles law, a galaxy 500 million parsecs away has a velocity of roughly Identify the errors in the following message, and consider how best to correct them.To: DeShawn Davis From: Peter Schmidt Date: 13:45, March 31Subject: Sales CorrespondenceDear Mr. Davis,[1] Thank you for contacting Ego Building Associates. Ego personell take great pride in providing the most prompt, reliable service in building maintainence and repair.[2] We often have difficulty finding subcontractors with sufficeint experience to insure our excellant standards are upheld.[3] Please send us your catalog of garaunteed stucco services. Perhaps our companies will have the opportunity to work together in the future.Regards,Peter Schmidt, Project ManagerEgo Building AssociatesWhich of the following choices is the best revision of Paragraph 1?1. Thank you for contacting Ego Building Associates. Ego personelle take great pride in providing the most prompt, reliable service in building maintenance and repair.2. Thank you for contacting Ego Building Associates. Ego personnel take great pride in providing the most prompt, reliable service in building maintenance and repair.Which of the following choices is the best revision of Paragraph 2?1. As we are located in the Arizona dessert, where stucco finish is popular, our staff recieves many work orders to repair stucco after tennants have relocated.2. As we are located in the Arizona desert, where stucco finish is popular, our staff receives many work orders to repair stucco after tenants have relocated.Which of the following choices is the best revision of Paragraph 3?1. Please send us your cataloge of stucco services and finishes. Perhaps our companies will have the oppertunity to work together in the future.2. Please send us your catalog of stucco services and finishes. Perhaps our companies will have the opportunity to work together in the future. A fair die is rolled until three different numbers are seen. Let X be the number of rolls this requires. Find E[X] and Var(X). (Hint: Use the technique of the coupon collector problem in the book.]