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erik [133]
3 years ago
10

Yo can someone help me out

Biology
2 answers:
levacccp [35]3 years ago
6 0
The answer is A because it is the one thing that was not changed
svet-max [94.6K]3 years ago
5 0
A constant is something that is kept the same throughout the course of a experiment. So I would guess C) because they are not doing anything special. If it’s not C then it is A. :)
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The answer is Neogene

Explanation:

It cannot be Cenozoic because that is an era. Not a period. Paleogene, Neogene, and Quaternary (our current period) are all periods within the Cenozoic Era (our current era). On the geologic time scale, there are Eras, Periods, and Epochs (and a few more classifications). Humans first appeared in the Miocene epoch which is an epoch in the Neogene period (in the Cenozoic era).

This is why the answer is Neogene.

Hope this helps...

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The endocrine gland is the one that is ductless an release its secretion directly in bloodstream example liver, pancreas, etc.  The given statement is true and the correct option is B.

<h3>What is endocrine gland's secretion called?</h3>

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The endocrine gland is the one that is ductless an release its secretion directly in bloodstream example liver, pancreas, etc.

Thus, the given statement is true and the correct option is B.

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