A group of organisms of the same species living in the same place at the same time.

Hypertonic solution.

Hypotonic solution.

A type of symbiotic relationship where one organism benefits and the other is neither helped nor harmed.

Lipids.

A community of living organisms interacting with their environment.

A symbiotic relationship where both organisms benefit.

A relationship where one organism benefits at the expense of another.

Proteins help with transport, communication, and structural support.

A solution where the concentration of solutes is equal inside and outside the cell.