It's either 3.5 or 1.2
There would be more evidence spread out through space to be noticed by scientists and it seems like a stretch to go as far back as 4 billion years ago.
(I mean really? That much before the DINOSOURS died? I don't think so)
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Hope this helps
Miri
Answer:
there would be a surplus of other prey species
Explanation:
Absorbed into the blood by the mature enterocytes on the upper third of the intestinal villi
The answer you are looking for is the <span>hypothalamus</span>
I believe we obtain the cells of our test subject from DNA testing
hope it works!!