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BaLLatris [955]
3 years ago
9

What supports the external ear?

Biology
1 answer:
mezya [45]3 years ago
5 0
Hard, dense bone tissue that is beneath the outer membrane of bone <span />
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The order Cetacea includes modern-day whales, dolphins, and porpoises. These marine mammals share common characteristics that ha
allsm [11]

Answer:

The correct option is <u><em>A. they evolved from land mammals.</em></u>

Explanation:

The process of evolution explains how closely one organism is to another based on their common ancestors. Scientists believe that those organisms which show many similarities in their structures or functions might have evolved from a common ancestor in the past.

As in the above-mentioned question, scientists have observed that cetaceans lack gills and breath air, this is a property of land mammals. The cetaceans have fin bones which are similar to the limb bones. As limb bones are present in land mammals, hence they cetaceans and land mammals might have common ancestors in the past.

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Is chromatin found in a plant cell? <br><br> Is chromatin found in an animal cell?
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Is chromatin found in a plant cell?

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3 0
2 years ago
Select all that apply.
Alika [10]
A. common names can be in different languages
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How does a scientific explanation differ from a nonscientific explanation?
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Which population of iguanas, marine or land, would you expect to be larger?
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