The Major Environmental Location of Methanogens Is

question 37

Multiple Choice

The major environmental location of methanogens is

• A) landfills.
• B) ruminant digestive tracts.
• C) human digestive tracts.
• D) anaerobic wetlands soil.
• E) marine floor sediment.

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Definitions:

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).

Motor Cortex

A brain region responsible for the planning, control, and execution of voluntary movements.

Circadian Rhythm

Refers to the natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Arousal

A state of increased physiological activity or alertness, involving the activation of the sympathetic nervous system.