The increased acidity of seawater can harm marine life by making ____ available to organisms that require it

a. less nitrogen
b. more sulfur dioxide
c. less carbon dioxide
d. more methane
e. less calcium carbonate


ANSWER: e

Biology & Microbiology

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The two closely allied organ systems that allow for running, swimming, and flying under the direction of the nervous system are the _____ systems.

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What would a Lod score of 3.2 tell you about genetic linkage? What information does the ? value tell you?

What will be an ideal response?

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Clusters of phloem and xylem tissues are called

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