1.B
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I mean that's what you teachers probably think the answer is but only a very hopeless and sad person should think evolution exist, if it did, why isn't happening today, or why don't we see changes.
Is there any optional answers?
chemical formula??! do you mean O2
False, because a niche is how one animal uses its habitat- many animals use many different niches
I believe animals that possess homologous structures probably evolved from the same ancestor. Homologous structures are similar because of common ancestry. A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor.