Refer to the Figure Below to Answer the Following Question(s)

question 61

Multiple Choice

Refer to the figure below to answer the following question(s) ..

-These planktonic organisms often have needle-like structures that:

• A) are used as a defense mechanism.
• B) are used as paddles to catch ocean currents.
• C) increase density.
• D) prevent sinking.
• E) serve as a "skeleton" to support the diatom.

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Definitions:

Studying

The act of devoting time and attention to acquiring knowledge on a subject, especially through reading and analyzing material.

Pons

A part of the brainstem that plays a key role in controlling breathing, communication between different parts of the brain, and sensations such as hearing.

Regulates Thirst

The physiological process that maintains hydration in the body by triggering the sensation of thirst.

Limbic System

A complex system of nerves and networks in the brain, involved in basic emotions (such as fear and pleasure) and drives (such as those for food and sex).