Without Bacteria in the Environment

question 4

Multiple Choice

Without bacteria in the environment,

• A) adequate amounts of carbon would not be available to living organisms.
• B) plants would not be able to grow due to lack of nitrogen.
• C) bioremediation would have limited use as a tool to clean up pollutants.
• D) there would be a shortage of decomposer organisms.
• E) All of the choices are correct.

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Definitions:

GABA

A major inhibitory neurotransmitter in the brain involved in reducing neuronal excitability throughout the nervous system.

Voluntary Movements

Movements that are consciously controlled by the brain, involving motor planning and execution.

Acetylcholine

A neurotransmitter in the nervous system involved in muscle activation, memory, and learning.

Muscles

Tissues in the body that have the ability to contract, enabling movement of the body and its parts.