These are remains of a structure that is no longer functional but show common ancestry.

When was Jean Baptiste De Lamarck born?

He was the first scientists to understand geologic time.

He explained that the species changed over time most likely through changes, which he called mutations, in genes.

In Weismann’s experiment, what organism did he use to disprove Lamarck’s theory of Evolution?

Charles Darwin published a book. What is the book title?

One of the main point in Darwin’s theory states that the differences within populations that make every individual different from other individual.

According to Haeckel, in what kingdom does all unicellular organisms belong?

Humans belong to which kingdom?