If Organic Matter Is Useful in Water as a Nutrient

question 23

Multiple Choice

If organic matter is useful in water as a nutrient source, why does excess organic matter lead to a decrease in aquatic life?

• A)Aerobic bacteria feed on all the organic mater and use up all the oxygen.
• B)Anaerobic bacteria feed on the organic matter and populations increase, leading to consumption of all the food.
• C)Anaerobic bacteria eat all the aerobic bacteria, which leads to loss of oxygen in the water.
• D)The excess organic matter blocks light, which leads to a decrease in photosynthesis and causes a drop in oxygen production.
• E)none of the above

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Definitions:

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.

Operant Conditioning

A learning process through which the strength of a behavior is modified by reinforcement or punishment.

Cognitive-Behavioral Therapy

A psychotherapeutic treatment that helps individuals understand the thoughts and feelings that influence behaviors, aimed at changing negative thought patterns and behaviors.

Relaxation Training

Techniques or exercises designed to reduce tension and stress, promoting physical and mental well-being.