The last common ancestor of humans is known to be which of the following?
Correct answer: D. Pan troglodytes
- A. Homo neanderthalensis
- B. Lemuroidea
- C. Dromaeosaums
- D. Pan troglodytes
Explanation
Chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) are both our evolutionary closest living relatives. Human and Pan lineages diverged around 7 million years ago, and the chimpanzee and the bonobo branched 1-2 million years ago. Hence, option D is correct.
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Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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