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