Upwelling Zones Are Frequently _______

question 17

Multiple Choice

Upwelling zones are frequently _______ .

• A) high in nutrients
• B) dead zones
• C) relatively warm
• D) anoxic dead zones

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Definitions:

Bacteria

Single-celled organisms that can exist either as independent (free-living) entities or as parasites (dependent upon another organism for life).

Vectors

Organisms, such as mosquitoes or ticks, that transmit pathogens between humans or from animals to humans.

Allergic Reaction

An immune system response to a foreign substance that's not typically harmful to the body, such as pollen, food, or pet dander.

Toxin

A poisonous substance produced within living cells or organisms.