What protects the cell and controls what enters and leaves

The most recent common ancestor of humans chimpanzees occurred ___ million years ago.

A chemical spill has just killed off all the algae in a part of the open ocean. how will this affect the food webs in that part?

Why do animals cooperate with one another

Having freckles is dominant over not having freckles, and curly hair is dominant over straight hair. One parent is homozygous for freckles and has straight hair. The other parent does not have freckles and has straight hair.

Name the appendages used for movement by organism belonging to protista

How the carbon atom's bonding tendencies lead to the formation of macromolecules

Smallest planet in the solar system

What is the definition of soil according to a soil scientist?

When muscles lack oxygen this will start to build up and cause fatigue?

A client is hospitalized with posterior nasal bleeding and has a gauze pack in the posterior nasal cavity. the nurse assesses the client and notes restlessness and anxiety and an oxygen saturation of 92%.