Question

Jean Baptist's Lamarck was a pioneer in the field of biology. He is most famous for coming up with a theory to explain how loving things change over time. However, his theory happened to be wrong . Describe Lamarck theory and why it is incorrect

Answer 1

For ed2020

Lamarck thought that organisms came into being through spontaneous generation. He thought they changed from simple organisms to more complex organisms because they had an innate drive to become more complex and "perfect." Lamarck thought that when organisms changed their behaviors in response to a changing environment, their bodies changed. When they used a part of their bodies more, it changed accordingly. When they used a part of their bodies less, it shrank.

Answer 2

Answer and Explanation:

According to this theory, the young of a species may inherit certain physical characteristics which their parents acquired in the course of their daily lives. According to Lamarck, modern giraffes evolved from short-necked ancestors. The long necks develop as a result of stretching to reach the leaves of tall trees. The offspring of these giraffes inherited the long necks.

Lamarck's assumption of acquisition of characteristics by individuals in the course of their lifetimes is true. However, the passing of these traits to their offspring is not true. Acquired characteristics do not cause any alteration whatsoever in the hereditary information contained in the chromosomes. This theory is therefore not valid.