Nitrogen in the cells of plants and animals is first released to other organism with the of
a)denitrifying bacteria
b)nitrogen-fixing bacteria
c)nitrifying bacteria
d)decomposers

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor

Give two examples of what would occur if one of the pairs did not match or had an extra chromosomes. explain how this might occur, and if it would be dangerous to the individual. fast.