Which of the Following Is Correct

question 165

Multiple Choice

Which of the following is correct?

• A) There is only one community within each distinct ecosystem.
• B) An ecosystem is the interaction of many communities with the abiotic physical components of their environment.
• C) Within a single lake there is usually only one community.
• D) By definition, a community includes abiotic factors.

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Definitions:

Benign

Describes conditions, tumors, or growths that are not cancerous and are unlikely to spread to other parts of the body.

Progresses

The act of moving forward or advancing towards a goal, improvement, or a higher stage.

Dopamine-Producing Neurons

Nerve cells in the brain that release dopamine, a neurotransmitter essential for movement, motivation, and pleasure.

Serotonin-Producing Neurons

Nerve cells that manufacture and release serotonin — a neurotransmitter important for mood regulation and other functions.