When atoms gain or lose electrons, they become negatively or positively charged. These negatively or positively charged atoms are known as

A. isotopes.
B. ions.
C. isomers.
D. unstable atoms.


B. ions.

Biology & Microbiology

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Those dinoflagellates that live in an intimate association with corals are called

A. lichens. B. zooxanthellae. C. phytoplankton. D. parasites.

Biology & Microbiology

Amyloplasts are responsible for the colors of ripening fruits or autumn leaves

Indicate whether the statement is true or false.

Biology & Microbiology

The Gulf Stream takes relatively cold water toward northwestern Europe

Indicate whether the statement is true or false.

Biology & Microbiology

What is the advantage of using DNA sequences from many genes to reconstruct the evolutionary history of humans?

What will be an ideal response?

Biology & Microbiology