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tatyana61 [14]
3 years ago
5

what are three necessary conditions for evolution by natural selection? Explain with evidence of these necessary conditions is s

atisfied by the black vs. speckled forms of the peppered moth
Biology
1 answer:
In-s [12.5K]3 years ago
7 0

Answer:

Reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual.

Explanation:

The heredity in the speckled forms of the moths were the most common form as they camouflaged much easier, while the black moths would be eaten off by predators as they could not camouflage as well. With the industrial revolution the coal and other things made many trees in the forest black, because of the physical variation the black moths now blended in while the speckle moths couldn't and the roles were reversed.

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On the graph below, what would explain why the rabbit population levels drastically increased instead of decreasing drastically?
Ilia_Sergeevich [38]

Based on factors affecting population, the rapid increase in the rabbit population could be dues to high fertility rate, abundance of food and lack of predators.

<h3>What is population increase?</h3>

Population increase refers to the increase in the number if species of an organism found in a given habitat over time.

Increase in population can be brought about by factors such as;

  • abundance of food
  • high fertility rate
  • favorable environmental conditions
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Therefore, the rapid increase in the rabbit population could be dues to high fertility rate, abundance of food and lack of predators.

Learn more about population increase at: brainly.com/question/2408010

7 0
2 years ago
Horses and zebras can be bred to produce a zorse, which is infertile. Which is most likely the reason zebras and horses are cons
andrew11 [14]

Answer:

The correct option is B) Their offspring cannot breed.

Explanation:

Organisms belonging to the same species require the ability to breed and produce fertile offsprings. If two organisms breed to produce infertile offsprings, then they are not considered to belong in the same species. Infertile offsprings do not have the capability to reproduce. The breeding between a horse and a zebra produces zorse, which is sterile. This depicts that both the zebra and horse belong to different species as they cannot produce a fertile offspring.

4 0
3 years ago
Ecosystems are closed environments.<br> TRUE<br> FALSE
Yanka [14]
This is a false statement
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Valentin [98]

Answer:

B. Cellulose

Explanation:

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An example of molecule that forms from strong chains of polysaccharides is CELLULOSE, which consists of long chains of glucose units linked together by B-1,4-glycosidic bonds. Cellulose is the most abundant polysaccharide on Earth found in plant cell walls.

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