Who is the father of evolution?

The gradual change in species over time is

When an organism completely dies out, it is called __

Survival of the fittest refers to organisms that

Genetic differences between organisms of the same species is called ___

A group of similar organisms that can mate with each other and produce fertile offspring are called

Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

Bird wings and butterfly wings are an example of

Dogs are a product of

A human appendix is an example of a

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