Tidal volume is air a. remaining in the lungs after forced expiration b. exchanged during normal breathing c. inhaled after normal inspiration d. forcibly expelled after normal expiration

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

In what cells is the human genome located?