Answer:
B. Cellular respiration takes place in mitochondria and chloroplasts.
Look up traffic rules on whatever state you live in and it will tell you everything :) not much of an answer but thats all i have <3
Atria is a large part of the heart so too big for cells; arteries & veins lead away or to the heart.
Capillaries are the smallest vascular structures that allow materials to be exchanged easily between cells.
the basic unit of life is the cell
The deoxyribonucleic acid (DNA)
