Ap biology evolution why do some organisms evolve away organs

Answers

Answer 1
Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions

Related Questions

What happens is a cell does not recognize something

Answers

Answer:

Generally, if a cell does not recognize something, it will launch an immune response.

Explanation:

This is why individuals who have organ transplants must be put on immunosuppressants, when cells do not recognize a foreign body they will immediately assume it is harmful and make an attempt to attack it.

What is the proper name of the plasma membrane found on a muscle fiber?

Answers

Answer:

Answered below

Explanation:

the plasma membrane of a skeletal muscle fiber is called the sarcolemma. The sarcolemma invaginates into the cytoplasm of the muscle cell (sarcoplasm). This forms membranous tubules that pass across the muscle cells.

Determine whether each phrase mainly describes surface ocean currents or deep ocean currents. found near the top of the ocean caused by prevailing winds caused by differences in water density caused by differences in water temperature influenced by rotation of earth found closer to the ocean floor

Answers

Influenced by rotation of Earth

caused by prevailing winds

found near the top of the ocean

The phrases that describe deep Ocean currents are :

caused by differences in water

found closer to the ocean floor

caused by differences in water density

Surface ocean currents are found near the top of the ocean, and they are caused by prevailing winds. The wind creates a force on the surface of the ocean, which causes water to move in the direction of the wind.

What are these currents responsible for ?

These currents are responsible for redistributing heat around the planet, making them an important factor in regulating climate.

Deep ocean currents, on the other hand, are caused by differences in water density and temperature. Cold, dense water sinks to the bottom of the ocean, creating a current that can move across the ocean floor.

This process is known as thermohaline circulation, and it helps to redistribute nutrients and oxygen throughout the ocean, making it an important factor in marine ecosystems.

The rotation of the earth also influences ocean currents. Due to the Coriolis effect, surface currents in the Northern Hemisphere tend to flow clockwise, while currents in the Southern Hemisphere tend to flow counterclockwise. This effect is caused by the rotation of the earth and the resulting centrifugal force.

Finally, currents that are found closer to the ocean floor are deep ocean currents. These currents are slower and less visible than surface currents but can have a significant impact on the ocean's circulation and the Earth's climate.

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Could the world's
Cavendish banana crop be
destroyed some day?
Construct an explanation to
support your answer. Base
the explanation on evidence
from the potato famine.

Answers

Cavendish banana crop be destroyed some day due to Panama disease.

How Cavendish banana crop be destroyed?

The Cavendish banana is considered as the most popular banana worldwide but it could disappear in the coming years because of the attack of an aggressive fungus called "Panama Disease."

This disease destroy the banana plant at faster rate which leads to its destruction so we can conclude that Cavendish banana crop be destroyed some day due to Panama disease.

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What is the climate and vegetation like in the temperate woodland?

Answers

Answer:

woodlands and lush vegetation

Explanation

Deciduous woodlands contain trees with broad leaves such as oak, beech and elm. They occur in places with high rainfall, warm summers and cooler winters and lose their leaves in winter.

Answer:

high rainfall, warm summers and cooler winters

the landscape contains  oak, beech, elm, Lichen, moss, ferns, wildflowers and other small plants

The temperature in a temperate woodland & shrubland biome is hot & dry in the summer with temperatures up to 100 degrees F. The winter is cool & moist with the low temperature about 30 degrees F. Precipitation: Annual rainfall is 10-17 in.  

Hope This Helps

People once believed that all planets and stars orbited around
a. Mercury
C. Earth
b. Venus
d. Mars

Answers

People once believed that all planets orbited around Earth

Which is not an example of a particular phenotype being the reason a species has survived in their environment?

Answers

Q.

Which is NOT an example of a particular phenotype being the reason a species has survived in their environment?

A-A black wolf in a pack of grey wolves in the forest

A town’s population size has been slowly increasing for the past five years. The town’s total electricity use has also slowly increased, until last year when it decreased slightly. Explain what could have caused the decrease in the town’s total electricity use.

Answers

The reason why the electricity could decrease is because the population of the town’s people has gone down causing the electricity rate to decrease. Hope this helps you.

Which is a correct observation based on the photo shown below?

A bird with green, yellow, black, and white feathers is shown. It has a long narrow beak that is longer than the length of its head.
The bird’s coloring indicates that it lives in trees with green and yellow leaves.
The bird has a narrow beak that is longer than the length of its head.
The bird probably uses its long beak to reach the nectar inside flowers.
The bird must inhabit a cold climate since there is ice on the branches.

Answers

Answer:

The bird has a narrow beak that is longer than the length of its head.

Explanation:

-The beak is long and thin, which helps it dip into the flowers to sip nectar (a sugary fluid the hummingbird uses for food).

-This bird (Hummingbird) have a long, narrow beak that allows it to reach the nectar from brightly colored, tubular flowers. It also feeds on insects and have a flexible lower beak that allows them to grab insects from the air during flight.

hope that helps :)

Answer:

The bird has a narrow beak that is longer than the length of its head

Explanation:

-The beak is long and thin, which helps it dip into the flowers to sip nectar (a sugary fluid the hummingbird uses for food).

-This bird (Hummingbird) have a long, narrow beak that allows it to reach the nectar from brightly colored, tubular flowers. It also feeds on insects and have a flexible lower beak that allows them to grab insects from the air during flight.

hope that helps :)

Make a claim about natural selection

Answers

Answer:

Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others

Explanation:

A species of squirrel has skin cells that contain 20 chromosomes. How many chromosomes would be found in the sperm produced by heat same squirrel?

Answers

Answer:

40

Explanation:

40 chromosomes would be found in the sperm produced by heat same squirrel

40 chromosomes would be found in the sperm produced by heat same squirrel.

What are Chromosomes?

A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA fibres in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins.

The highest possible level of DNA and protein organisation is seen in chromosomes. Chromosomes' primary job is to carry DNA and pass genetic material from one generation to the next. Cell division involves the critical function of chromosomes. They guard against tangles and damage to the DNA.

For above given example, if 20 chromosomes are present in skin cells, then the squirrel will have 40 chromosomes in the sperm cells.

Thus, 40 chromosomes would be found in the sperm produced by heat same squirrel.

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Which explains how the economic situation in chile in 1980 affected its government? chile’s improving economy led to the government overthrowing a military junta. chile’s worsening economy led to the government electing a socialist president. chile’s worsening economy led to the government being overthrown by a military junta. chile’s improving economy led to the government launching populist programs.

Answers

The economic situation best describe by Chile’s worsening economy led to the government being overthrown by a military junta.

What is the economic history of Chile?

The economic condition of Chile changed over time.

Due to a worldwide recession, the GDP of Chile dropped to 14.1 in 1980.

The value of the currency is overvalued.

Due to the Asian crisis, in 1997 economic growth depletion started.

Thus, the correct option is C.

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Answer:

C.

Chile’s worsening economy led to the government being overthrown by a military junta.

Explanation:

yes

How many dna molecules are in three pair of homologous chromosomes

Answers

Answer:

Thus during metaphase of mitosis, each chromosome (i.e., each chromatid pair) will contain two molecules

Explanation:

double stranded DNA (one molecule per sister chromatid). The following diagram depicts the behavior of one homologous pair of chromosomes during mitosis.

Six DNA molecules are there in three pairs of homologous chromosomes. This is because each homologous chromosome will contain two molecules of double-stranded DNA.  

What do you mean by Homologous chromosomes?

Homologous chromosomes may be defined as two chromosomes of the same length, position, and structure one inherited from the father's side and the other from the mother's side.

The amount of genetic material may vary from phase to phase of the cell cycle. But at the time of metaphase during mitosis, each chromosome will possess two molecules of DNA.

Therefore, Six DNA molecules are there in three pairs of homologous chromosomes.

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At which point on a cladogram do two species share an ancestor?.

Answers

Answer:

The node

Explanation:

Each branch point on the cladogram represents where species split off into new ones. The node represents the last point at which 2 new species shared a common ancestor.

Assuming that the population was in hardy-weinberg equilibrium for the g locus, what percentage of moths in the natural population was white in 1962 ?.

Answers

The percentage of moths in the natural population that was white in 1962 is : 4%

What is Hardy-weinberg equilibrium ?

Hardy-weinberg equilibrium states that the sum total of all the genes of an individual in a population is constant when the disturbing factors such as genetic drift does not occur

p² + q² + 2pq = 1

Determine the percentage of moths in 1962

Applying the equation below

p² + q² + 2pq = 1

p = frequency of dominant allele

q = frequency of recessive allele

q² = frequency of h0m0zygous recessive genotype

p² = frequency of h0m0zygous dominant genotype

From the graph

Frequency of G allele ( i.e p ) = 0.8

percentage of white moths = q²

Note : p + q = 1  ---- ( 1 )

Insert value into equation ( 1 )

0.8 + q = 1

therefore ; q = 0.2

Hence the percentage of white moths = ( 0.2 )² = 0.04

                                                                               = 4%

Hence we can conclude that The percentage of moths in the natural population that was white in 1962 is : 4%

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There are how many types of nitrogenous bases?

Answers

Answer:

4

Explanation:

There are 4 nitrogenous bases and they are Adenine, Thymine, Cytosine and Guanine (in RNA, Thymine is replaced by Uracil)

Answer:

Four different types of nitrogenous bases are found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G).

Explanation:

DNA is a polynucleotide. Each nucleotide is made up of deoxyribose sugar, a phosphate group and nitrogenous base. In DNA, there are four main kinds of nitrogenous bases. Adenine (A), guanine (G), thymine (T), and cytosine (C) are the four bases of DNA (C). Purine bases are adenine and guanine, whereas pyrimidine bases are thymine and cytosine. Base pairing occurs between complementary bases on two strands of double-stranded DNA. By two and three hydrogen bonds, A and G link with T and C, respectively. In RNA, uracil is present instead of thymine.

Describe the importance of the nucleus membrane being part of the endoplasmic
reticulum and the Golgi apparatus' membranes

Answers

Answer: Nucleus membrane isn't part of the ER or Golgi Apparatus, BUT all of them are part of the endomembrane system.

Endoplasmic reticulum and Golgi apparatus are two membrane-bound organelles found in eukaryotes. Both these organelles are closely associated and functionally related. Both endoplasmic reticulum (ER) and Golgi apparatus are two components of the endomembrane system of a cell. Lysosomes and vesicals are the other components of the endomembrane system.

How is preimplantation genetic diagnosis used in the future?

Please help
Thank you

Answers

Answer:

In recent years PGD technology has been increasingly used by infertile patients undergoing IVF treatment, in order to screen their embryos for chromosomal abnormalities. Aneuploidy is extremely common in human embryos and leads to a developmental arrest, implantation failure and spontaneous abortion.

What are the 3 types of neurons?


Tq! :)

Answers

Answer:

sensory, motor, and interneurons.

Explanation:

For neurons in the brain, at least, this isn't an easy question to answer. For the spinal cord though, we can say that there are three types of neuronssensory, motor, and interneurons.

Answer:

Afferent "Sensory" Neuron

Interneuron "Associative Neuron"

Efferent "Motor" Neuron

Explanation:

The Afferent Neuron or Sensory Neuron receives information from the sensory receptors and carries the impulse from the sense receptors to the central nervous system. In this example the touch receptors in the skin are relaying information through the Afferent "Sensory" Neuron from the environment to the spinal cord.

The Interneuron or the Associative neuron is the transfer station or the decision making neuron. In the case of the reflex arc the Interneuron would make a decision to respond or not respond based upon the intensity of the stimulus.

The Efferent Neuron of Motor Neuron would then return the impulse back to the muscle or gland that would need to respond.

With your group, list at least three possible uses and/or products of the energy absorbed by the oak leaves that did not contribute to the production of biomass

Answers

Answer:

heat loss, energy for cellular process: transpiration, other forms of water, oxygen, carbon dioxide loss

Explanation:

The energy received by the Oak leaves which did not contribute to the synthesis of biomass may be used for or produced as heat loss, energy for cellular processes such as transpiration, other forms of water, oxygen, or carbon dioxide loss.

What is Biomass?

The material from previously living organisms known as biomass is utilised to produce bioenergy. Examples include wood, wood byproducts, energy crops, agricultural waste, and organic waste from commercial and residential sources. The main biomass energy source nowadays is wood and wood waste.

Renewable organic material from plants and animals is known as biomass. Up until the middle of the 1800s, biomass accounted for the majority of the entire yearly U.S. energy consumption. Biomass is a popular fuel in many nations, particularly for heating and cooking in underdeveloped nations.

Thus, the energy received by the Oak leaves which did not contribute to the synthesis of biomass may be used for or produced as heat loss, energy for cellular processes such as transpiration, other forms of water, oxygen, or carbon dioxide loss.

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Approximately
% of the available energy is passed from organisms at one trophic level to organisms at the next trophic level.

Answers

The answer is about 10 percent

Approximately 10% of the available energy is passed from organisms at one trophic level to organisms at the next trophic level. This is known as the 10% rule or the 10% energy transfer efficiency.

What is 10% rule?

Energy flows through trophic levels in an ecosystem starting with producers (plants or algae) that convert sunlight into chemical energy through photosynthesis. When herbivores consume these producers, only a fraction of the energy stored in the plants is assimilated into their bodies, while the rest is lost as waste or used for metabolic processes like respiration. This assimilated energy becomes available to the next trophic level.

As energy moves up the food chain, similar inefficiencies occur at each level. Carnivores that consume herbivores receive only about 10% of the energy stored in their prey. This pattern continues as energy is transferred to higher-level predators.

The low energy transfer efficiency can be attributed to several factors. First, organisms expend energy for basic metabolic processes, such as respiration, movement, and growth, which reduces the energy available for transfer. Second, energy is lost as heat during these metabolic processes. Additionally, not all parts of an organism are consumed or digested by predators, resulting in energy losses through waste.

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I need help I don't understand

Answers

they may look different because one slide may be dyed and one slide may not. or they may b slides of different things

Which of the following is/are most likely to be part of the gastrointestinal reflex pathway? 1. Stretch receptors 2. Neurons of the autonomic nervous system 3. Muscle fibers of the transversus abdominus.

Answers

The stretch receptors and neurons of the autonomic nervous system are parts of the gastrointestinal reflex pathway.

What is Gastrointestinal reflex?

This is usually stimulated by senses as a result of the presence of stretch receptors and neurons of the autonomic nervous system.

They help in controlling  the release of acids in the stomach and also suppresses the release of digestive proteins.

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Which of the following best describes the total amount of carbon in the system made up of the Earth and its atmosphere?
A. It remains constant because oxygen converts to carbon in the geosphere and hydrosphere.
B. It continually increases as carbon is produced during cellular respiration and trapped in the atmosphere.
C. It continually decreases as carbon is used up during photosynthesis and trapped in the biosphere.
D. It remains constant because carbon cycles through the atmosphere, hydrosphere, biosphere, and geosphere.

Answers

Answer:

A

Explanation:

It remains constant because carbon cycles through the atmosphere, hydrosphere, biosphere, and geosphere.

What is the control group of plants can hear music or sound

Answers

Answer:

Wht are the answer choices

Explanation:

Which of the following best explains why conserving resources is important?

Answers

Answer:

we should listen to our elders

Explanation:

resources is important

helpppp
What body systems interact and work to expel wastes from the body?
A.
nervous and excretory
B.
nervous and circulatory
C.
digestive and circulatory
D.
digestive and excretory

Answers

Answer:

A. and D.

The nervous system removes cervical and metabolic waste from the brain, helping prevent brain problems. Your digestive system cleans the body by removing toxins, and your liver works to clean. The excretory system cleans your blood, allowing for healthy blood that is free of waste.

If you cannot pick more than one option, I would go with D.

Which molecule, chlorophyll a or chlorophyll b, is more polar?.

Answers

Answer:

Molecular Structure and Polarity. The distinctions between the chlorophylls, which are more polar than β-carotene are slight: chlorophyll a has a methyl group (Y=CH3) in a position where chlorophyll b has an aldehyde (Y=CHO). This makes chlorophyll B slightly more polar than chlorophyll A.

true or false condensation occurs ehen water turns from a liquid to a gas?​

Answers

Answer:

false

Explanation:

In the Hardy-Weinberg principle, the actual number values of p and q will not change if five specific conditions are being met. This indicates

Question 1 options:

evolution is occurring only because of mutations


evolution is not occuring


evolution is occurring rapidly because of climate change


evolution is occurring because of natural selection

Answers

In the Hardy-Weinberg principle, the values of p and q will not change if evolution is not occurring.

What is the Hardy-Weinberg principle?

The Hardy-Weinberg principle is a model used in population genetics to estimate genotypic and allele frequencies in a population.

The Hardy-Weinberg principle states that allele and genotypic frequencies remain constant in absence of evolutionary forces.

These evolutionary forces include nonrandom mating, gene drift, gene flow, mutation and natural selection.

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