What is the importance of nitrogen-fixation to autotrophic organisms?

What will be an ideal response?


Without the process of nitrogen-fixation, no new usable forms of nitrogenous nutrients would be available to autotrophic organisms.

Biology & Microbiology

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Neurons can synapse with many different types of cells (including muscle cells, secretory cells, and other neurons)

A. true B. false

Biology & Microbiology

Which is NOT an element?

a. water b. oxygen c. carbon d. chlorine e. hydrogen

Biology & Microbiology

All EXCEPT which of the following can occur in the

blood? a. digestion of nutrients b. binding of oxygen to hemoglobin c. transport of phagocytic cells d. stabilization of pH e. regulation of body temperature

Biology & Microbiology

What is the name of the characteristic that allows water to have a high surface tension?

A) adhesion B) cohesion C) hydrophilic D) hydrophobic

Biology & Microbiology