The common ancestor of orangutans, gorillas, chimpanzees, and humans existed

approximately _____ million years ago.



a. 16
b. 13
c. 18
d. 7


B

Biology & Microbiology

You might also like to view...

The byproduct of the metabolism of cyanobacteria that had the most effect on the further evolution of life is ____

a. oxygen gas b. carbon dioxide c. water d. nitrogen gas e. hydrogen gas

Biology & Microbiology

__________ are evidence of life in the distant past. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

CO2 fixation: Reverse TCA

What will be an ideal response?

Biology & Microbiology

There are three alleles controlling the blood types ABO. I A and I B are codominant genes, so that the

combination I A I B produces the blood type AB. The third allele I O is recessive to the other two alleles. Indicate which of these parents could produce the given child:Parents Child Yes or No (a) A ? AB B (b) A ? O A (c) A ? B O (d) A ? AB O (e) A ? AB B (f) B ? B O (g) AB ? AB A What will be an ideal response?

Biology & Microbiology