Question

Discuss lamark's principal of use and disuse of organs giving two relevant examples ​

Answer 1

Answer:

Jean Baptise Lamarck put forth the principle of use or disuse of organs. According to him, the morphological changes are responsible for evolution and the activities or laziness of the animals are responsible for those morphological changes. 3. The wings of birds like emu, ostrich have become weak due to no use at all.

Answer 2

Answer:

Here are some examples — a) Long neck and high forelimbs of giraffe developed due to their stretching for obtaining foliage from trees when ground vegetation became sparse is the prime example of Lamarckism. b) Development of webbed feet in aquatic birds, like duck...

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