What is the smallest unit of an element that retains the properties of that element?

a. atom
b. compound
c. ion
d. molecule
e. mixture


ANSWER: a

Biology & Microbiology

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

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________ is a floating, surface microbial community that drifts with the currents and waves.

Fill in the blank(s) with the appropriate word(s).

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According to the Baltimore system, there are ______ major groups of viruses

A. 4 B. 5 C. 6 D. 7 E. 8

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