Achange in genetic material is known as a type of selection.
true or false

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

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

What factors contribute to the effect an environmental toxin has on the human body?