Which of the following is NOT a reservoir in the nitrogen cycle
a. Nitrate
b. Nitrite
c. Ammonia
d. Nitrogen gas
e. Nitrogen dioxide

What process did darwin’s book suggest that organisms evolve through

What does the positioning of transcription factors determine?

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls