Most of the Ocean Is Profundal,but in the Open Ocean

question 43

Multiple Choice

Most of the ocean is profundal,but in the open ocean most primary productivity is in the photic zone because ___________.

• A)Phytoplankton need nutrients for photosynthesis
• B)Rooted aquatic plants need light for photosynthesis
• C)Rooted aquatic plants need nutrients for photosynthesis
• D)Phytoplankton need light for photosynthesis

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Definitions:

Extension

The movement by which the two ends of any jointed part are drawn away from each other, increasing the angle between them.

Adduction

The movement of a limb or other body part toward the midline of the body or toward another body part.

Flexion

The action of bending or the condition of being bent, especially of a joint or muscle.

Synovial Joint

A type of joint that is enclosed within a capsule containing synovial fluid, allowing for smooth movement between bones.