Answer:
Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.
Explanation:
From Wikipedia
A community for different living organisms that support each other is called an ecosystem. The answer is (A) an ecosystem.
Answer:by rotation that is powered by the motive force
Explanation:
Carbohydrates fuel the body and gives it energy since the simple sugars are easily broken down by the body