Which type of organisms first evolved about 1.5 billion years ago?
Correct answer: B. Eukaryotes
- A. Prokaryotes
- B. Eukaryotes
- C. Animals
- D. Seed plants
Explanation
Eukaryotes - Correct. Fossil evidence suggests eukaryotic cells first appeared around 1.5 billion years ago.
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About Evolution
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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