Why Do Deep-Sea Organisms Cluster Around Hydrothermal Vents

question 66

Multiple Choice

Why do deep-sea organisms cluster around hydrothermal vents?

• A) these organisms prefer the warmth of the vent
• B) these organisms depend on the organic material drifting down from surface waters to the vent for food
• C) these organisms obtain energy by chemosynthesis from inorganic molecules of vents
• D) these organisms have a light phobia
• E) these organisms use the pressure of the deep ocean to metabolize organic molecules

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Definitions:

Autonomic Nervous System

A part of the peripheral nervous system that controls involuntary bodily functions, including heart rate, digestion, and respiratory rate.

Limbic System

A complex system of nerves and networks in the brain, involved in controlling basic emotions and drives.

Forebrain

The anterior part of the brain, including the cerebral hemispheres, responsible for complex behaviors and cognitive functions.

Cerebellum

A part of the brain located at the back of the skull, responsible for coordinating voluntary movements and maintaining balance and posture.