Gametes, egg and sperm each carry alleles for a given trait. How many alleles do they carry for a given trait? A. 3
B. 2
C .1

b. 2

Explanation:

Gene's come in different varieties called alleles

B. 2

Explanation: There are 2 alleles that works on the traits

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

the answer is c.) there is a warm front in region a and a stationary front in region b.