18. Which are the best approximations for the most recent common ancestor for th
ID: 256235 • Letter: 1
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18. Which are the best approximations for the most recent common ancestor for these pairs? Select one: O a. Modern human/Neanderthal 7 million yrs ago, Chimp/human 500,000 yrs ago, Gorilla/human 5 million yrs ago O b. Modern human /Neanderthal 500,000 yrs ago, Chimp/human 7 million yrs ago, Gorilla/human 5 million yrs ago O c. Modern human/Neanderthal 7 million yrs ago, Chimp/human 5 million yrs ago, Gorilla/human 500,000 yrs ago O d. Modern human /Neanderthal 500,000 yrs ago, Chimp/human 5 million yrs ago, Gorilla /human 7 million yrs ago O e. Modern human /Neanderthal 5 million yrs ago, Chimp/human 500,000 yrs ago, Gorilla/human 7 million yrs ago O f. Modern human/Neanderthal 5 million yrs ago, Chimp/human 7 million yrs ago, Gorilla/human 500,000 yrs agoExplanation / Answer
Ans: d.
The earliest known fact of Neanderthals is dated 1.81 million years ago. So only options b and d qualify. Gorillas separated from chimpanzees 7 million years ago. So our answer is d.
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