The Average Elevation of the Depth of the Oceans Is

question 74

Multiple Choice

The average elevation of the depth of the oceans is

• A) -3800 m (-12,470 ft).
• B) -2070 m (-6790 ft).
• C) 100 m (325 ft).
• D) 875 m (2870 ft).

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Definitions:

Atrial Natriuretic Factor

A hormone produced by the atria of the heart that regulates blood pressure by reducing water, sodium, and adipose loads on the circulatory system.

Capillary Exchange

The process by which nutrients, gases, and wastes are exchanged between blood and tissues through capillary walls.

Precapillary Sphincter

A ring-like muscle at the entrance of capillaries that regulates blood flow into the capillary.

Atrial Natriuretic Hormone

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