B. The alveoli are responsible for gas exchange with the circulatory
system. describe how the gasses
move as these systems
interact when you breathe in, then exhale.
Include the following
terms:
*Diffusion
*Passive transport
*Oxygen
*Alveoli
*Carbon dioxide
*Capillary

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere

All cells need water to survive. in order to maintain the necessary amounts, water can flow across the cell membrane from areas of higher concentration to areas of lower concentration. what is this flow of water called? a) active transport b) allocation c) diffusion d) osmosis