Question

Explain the elongation of giraffe’s neck according to the theories of Lamarck.

Answer 1

Lamarck proposed that giraffes acquired longer necks because their ancestors stretched their necks to reach leaves on tall trees. This frequent stretching led to the gradual elongation of the neck, and the acquired longer neck trait was inherited by successive generations. Thus, the long neck was a result of use and disuse and inheritance of acquired characters.