the theory that new organs or characteristics develop in organisms when there is a need for them was postulated by ____________
Explanation
The theory of use and disuse propounded in 1801 by a French Zoologist, Jean Lamarck maintained that great changes in environment cause the organisms to form new structures and habits, in order to adjust to the new prevailing environment. The organisms then develop specialized characters by use and disuse of organs. The organs that are frequently used become well developed while those not used degenerate.
