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Tamiku [17]
4 years ago
14

What are the five factors that can lead to evolution?

Biology
1 answer:
Natalka [10]4 years ago
7 0
Natural selection, random genetic drift, mutation, population mating structure, and culture.
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Like humans, animals including dogs and cats get goose bumps. On a cold day, these goose bumps cause their coats to expand creat
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3. detection and response to stimuli

Explanation:

According to the given information, the thermoreceptors present in the skin layers of dogs and cats sense the change in the temperature of surroundings. When the temperature is reduced during a cold day, the sensory information about the same is sent to the central nervous system which in turn sends the motor information to the related muscles and glands.

One such response towards the lower temperature conditions is an expansion of their skin coat layers to insulate the underlying tissues from the cold surroundings. The same response (expansion of skin coat) is produced when these animals sense the danger of the presence of large predators around them.

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Lynn Margulis developed the endosymbiont theory to explain the evolution of certain eukaryotic organelles, such as chloroplasts
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Answer:

The answer is: letter C, The cell took in another ancient prokaryotic cell, which began living inside it.

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"Endosymbiotic Theory" states that<em> certain eukaryotic organelles evolved when multiple cells merged together.</em> So, this created a <em>"symbiotic relationship"</em> among them. The organism that lives inside the other organism is called the "endosymbiont."

An example of this are the eukaryotic cells, which took in a <em>prokaryotic cell</em> (such as the ancient chloroplasts and mitochondrion). These ancient prokaryotes used to be free-living. They were often engulfed by another cell. However, in this theory, they are not killed; rather, the host cell helps it to thrive. <u>This caused the organelles to evolve together with the host cell.</u>

Thus, this explains the answer.

4 0
3 years ago
Why can a accepted hypothesis be rejected at a later date
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B

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