Which portion of the brain is located closest to the spinal cord?

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

How do cells grow and reproduce to maintain homeostasis?

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."