(a) The picture depicts a theory of use or disuse of organs. Name it.
(b) Name the scientist who proposed it.
( c) Give one example and explain the theory with its help.
Why was this theory disproved?

Explanation

(a) The name of the theory is Lamarckism.
(b) Jean- Baptiste Lamarck proposed this theory.
( c) Lamarck said that the morphological changes occur gradually either due to specific activities or laziness of a particular organism eg. Giraffe's neck is long due to browning on leaves of tall plants by extending its neck.
(d) Lamarck's theory of inheritance of acquired characters was disproved because the modifications brought about in an individual are not transferred to the next generation.