Question

Write the 1${}^{st}$ law of Lamarck with an example.

Answer 1

The first law of Lamarck explains that in evolution during the course of time, organisms or their component parts gradually tend to increase in size. The common example given by Lamarck is about the increase in the neck size of the giraffe. During evolution, there is an increase in the size of the neck of the giraffe which helps them to raise the neck and feed on the leaves of the trees. This habit is passed on to the next generation.