How could a change in the number of primary consumers affect the population size of the secondary consumers?

If you are in a chronic state of anxiety but also suffer from moment of sudden, intense fear you are problably suffering. from

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

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -