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