Question

explain in brief: (a) lamarks principal of use or disuse of organs
(b) Give two examples
(c) what are acquired characters ?​

Answer 1

Answer:

This concept is called as principle of 'use or disuse of organs'. b) The neck of giraffe has become too long due to browsing on leaves of tall plants by extending their neck for several generations. Wings of birds like ostrich and emu have become weak due to no use.