A biomass pyramid shows the at each trophic level.
A. process of fertilization
B. relative amount of living tissue
C. population density

What substance acts to prevent sudden ph changes in bodily fluids?

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

The carrier molecules of the electron transport system are located in the