In the 7 million years since the chimp and the human lines diverged from a creature common to both, the chimpanzee line evolved into two surviving species:
A. the common chimp and the bonobos.
B. the gorilla and the orangutan.
C. the common chimp and the orangutan.
D. the gorilla and the bonobos.
A. the common chimp and the bonobos.
Explanation: In the 7 million years since the chimp and the human lines diverged from a creature common to both, the chimpanzee line evolved into two surviving species: the common chimp (Pan troglodytes) and the bonobos (P. panicus). On the human side at least 18 different species appeared, several of which may have existed just 50,000 years ago, although only one (H. sapiens) has survived to the present day.
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