The movement of substances (as by diffusion) across a cell membrane without the expenditure of energy.
Answer:
the answer is biochemistry
In biology, cellular communication is a term used to determine distinct kinds of methods of communication among the living cellulites. Of these intercellular communication signifies the communication between the cells. In this kind of communication, membrane vesicle trafficking plays an essential role in both humans and animals.
On the other hand, intracellular communication signifies towards the communication of the organelles in order to sustain cellular homeostasis.
The source of the oxygen released into the air as a product of photosynthesis is C) Water only.
