Question

Observe the figure given below and answer the questions that follow:

1. What is the figure depicting?
2. What was the reason that the giraffe stretched their neck and forelimbs?
3. What is the name of the theory that is being depicted in the figure?
4. Who explained the theory?
5. What is the conclusion of this theory?

Answer 1

1. The figure shows how giraffe's necks evolved to graze on taller trees.
2. Giraffes were ground-feeding animals, but the location lacked ground-level vegetation, so giraffes began grazing from trees. The constant stretching of the neck resulted in larger necks.
3. Lamarck's Theory of Inheritance of Acquired Characters.
4. Jean Baptiste De Lamarck.
5. This idea suggests that changes in organisms might result from the underuse or overuse of organs. These mutations are passed down to the offspring, and over generations, these differences become permanent characteristics of the organism.