Which of the following elements is often growth limiting for organisms because of its limited availability?

a) oxygen
b) hydrogen
c) nitrogen
d) carbon


Answer: c) nitrogen

Biology & Microbiology

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Exit method used by viruses that does not immediately destroy the host bacterium is

A. lysis. B. inversion. C. extrusion. D. excising.

Biology & Microbiology

An increase in air temperature will result in ____ water vapor in the atmosphere because warm air holds ____ water

vapor than cold air does.

a. more; less b. more; more c. less; less d. less; more e. no change in; less

Biology & Microbiology

______ have a complex placenta during gestation.

a. Eutherian mammals b. Monotremes c. Marsupials d. Echidnas

Biology & Microbiology

Some doctors prescribe synthetic thyroxine for weight loss even when circulating levels are normal. Will this work? What side effects are possible?

What will be an ideal response?

Biology & Microbiology