A. Citric acid cycle (Krebs cycle)
The equator because it receives equal amounts of sunlight though-out the year.
Hope this helped!!!!
Answer:
it's true. that looks to be musle tissue to me
A/Cell membranes and cell walls are selectively permeable and aid in communication.
Explanation:
Cell Membranes or cell wall have phospholipid bi layer which functions
as a selectively permeable barrier that separates an internal
environment from an external one. They are selective permeable through
passive process (concentration gradient) allowing certain molecule
diffuse into cells
