BIOLOGY HIGH SCHOOL

In the case of the peppered moths in England, when Kettlewell set up cameras to document that more white or black moths were eaten by birds on clean or sooty trees, he was verifying which factor involved in evolution by natural selection?

Answers

Answer 1
Answer:

OPTIONS:

a. The organisms vary in trait

b. The variation is inherited

c. More young are born than can survive

d. Some individuals are better adapted to the environment

Answer:

d. Some individuals are better adapted to the environment

Explanation:

Kettlewell’s biological experiment, which was conducted in England, was to study the evolutionary changes taking place in trees in relation to the appearance of dark-colored moth.  

It was observed that white moths were more common before the industrial revolution. After the industrial revolution, which changed the background of the environment of the moths due to pollution, the moths became easily seen and obvious to predatory birds.

It was discovered that peppered moths were selectively preyed on by birds depending on their body color, which serves as the most important factor that determines if moths can survive predation by blending with the background of their environment. This led to the evolving of moths of their color to blend with the background of their environment, which makes them hide from the birds that prey on them.

Kettlewell was trying to verify the factor in evolution by natural selection, which says, “some individuals are better adapted to the environment”.

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Inherited traits are passed down from our parents to us, their offspring, by the information that is coded in our parents' A) RNA.
B) antibodies.
C) chromosomes.
D) plasma.

Answers

Chromosomes. These are strands of DNA found in the nucleus that contain most of the genetic material in the cell.

C) chromosomes

because i had it on my test

A scientist tries to mate the two similar-looking fruit flies Drosophila melanogaster and Drosophila simulans. But he finds that they are unable to produce viable offspring. What kind of evolutionary barrier could this be?A.Chromosomal
B.Postzygotic
C.Physical

Answers

I would say that the kind of evolutionary barrier that this could be is B) postzygotic.
They can produce an offspring, but it can't be viable, meaning that it doesn't survive.
The kind of evolutionary barrier would be : B. Postzygotic

During postzygotic barrier, they do manage to produce offsprings. But that offspring do not has a fertile characteristic and tend not be able to survive and produce the next generation

hope this helps

What two substances are made in the nucleus and move into the cytoplasm?

Answers

RNA and ribosomal proteins are both made in the nucleus and move into the cytoplasm.

Plants tend to grow toward air with higher humidity because of _____.

Answers

The correct answer is geotropism. Plants tend to grow toward air with higher humidity because of geotropism. The geotropism is the turning or the movement of the plant in response to the Earth's gravity. Geotropism also allows the plants to orient themselves about growth.

Answer: Hydrotropism

Explanation: Hydro means water and tropism means moving in a positive orientation by the organism.The movement of plant in the response to the higher humidity is known as hydrotropism.

The process starts with the root cap movement that sense water and sends signals to the roots for elongation.

Example: plants moving towards higher humidity.

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Answers

A point mutation, or single base modification, is a type of mutation that causes a single nucleotide base change, insertion, or deletion of the genetic material, DNA or RNA.

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Answers

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