What is the function of proteins in a cell? a. to control chemical reactions
b. to store genetic information
c. to cover the nucleus
d. to copy messages from DNA

Chicken pox and hepatitis are bacterial diseases. true or false?

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

Individuals do not compete directly for resources, but are prey for the same predator