Answer the following questions true (T) or false (F)

1. Knowing the Gram property of a specimen has important clinical implications, including potential pathogenic features of the organism, and what antibiotics might be most effective in combating it.

2. A cation forms when an atom loses one or more negatively-charged electrons.

3. Water (H2O) and carbon dioxide (CO2 ) are both molecules and compounds.


1. TRUE
2. TRUE
3. TRUE

Biology & Microbiology

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A) contrast B) magnification C) resolution D) penetration

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Gene therapy done to sperm or egg cells, or the cells that produce them, is called

____________________ gene therapy. Fill in the blank(s) with the appropriate word(s).

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The view developed by H. A. Gleason that communities result from similarities in species' requirements and tolerances for environmental factors is referred to as the ________ concept of communities

Fill in the blank(s) with correct word

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The mode of natural selection in which two or more extreme phenotypes are fitter than the intermediate phenotype is

A. directional selection. B. stabilizing selection. C. disruptive selection. D. artificial selection. E. uniformitarianism.

Biology & Microbiology