as a human red blood cell matures it loses its nucleus as a result of this loss immature red blood cell lacks the ability to

Are characterized by dry conditions, limited vegetation and wide temperature range. a.) tropical rain forests b.) deserts c.) grasslands d.) none of the above

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels