The two primary functions of DNA are:

A.
to provide energy for the cell and replicate.
B.
to take in oxygen and remove carbon dioxide from the cell.
C.
to direct the activities of the cell and copy itself for new cells.
D.
to digest proteins and carry out photosynthesis.

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

What do we call an individual that has inherited two identical alleles for the same trait? a.homozygous b.heterozygous c.monozzygous