Example of a homologous organ is represented best by which of the following?
Correct answer: C. The arm of a human, wing of a bird
- A. Wing of an insect, wing of a bird
- B. Leg of a dog, leg of a spider
- C. The arm of a human, wing of a bird
- D. All of these options are correct
Explanation
The organs which have the anatomically same structure but are different in functions are called homologous organs. Examples of homologous organs are as follows: Mouthparts of cockroaches, honey bees, butterflies. Forelimbs of man, whale, bat, cheetah. Among the given options only option C has organs that have the same structure but different functions.
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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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