The homologous organs show similarity in:
Correct answer: B. Origin
- A. Shape
- B. Origin
- C. Function
- D. Size
Explanation
The correct answer is origin. Homologous organs are defined by their similar embryonic origin, which indicates a common ancestry. This is a key aspect of evolutionary biology, demonstrating how different species can evolve from a shared lineage. While shape, function, and size can vary greatly among homologous organs due to adaptation to different ecological niches, the embryonic origin remains consistent, making it the defining feature.
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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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