Zonation Within a Community Is Typically the Result of Differences

question 28

Multiple Choice

Zonation within a community is typically the result of differences in the

• A)patterns of predation among species within a community.
• B)rates of reproduction among species within a community.
• C)patterns of competition among species within a community.
• D)physical characteristics of the environment across a spatial gradient.

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Definitions:

Proximal Convoluted Tubule

A part of the nephron in the kidney where the filtration of blood takes place, responsible for the reabsorption of water, ions, and nutrients.

Secretion

The process by which substances are produced and discharged from a cell or gland.

Atrial Natriuretic Peptide

A hormone secreted by the heart's atria that regulates blood pressure by decreasing sodium ion concentration and therefore reducing blood volume.

Osmoconformer

An animal in which the salt concentration of body fluids varies along with changes in the surrounding sea water so that it stays in osmotic equilibrium with its surroundings.