Skin color is determined by three to five gene pairs. this makes skin color

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

What processes take place before the mature mrna exits the nucleus?