If the Flow of Energy in an Arctic Ecosystem Goes

question 74

Multiple Choice

If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, moving from phytoplankton to zooplankton to fish to seals to polar bears, then which of the following could be true?

• A) Polar bears can provide more food for humans than seals can.
• B) The total biomass of the fish is lower than that of the seals.
• C) Seal meat probably contains the highest concentrations of fat-soluble toxins.
• D) Seal populations are larger than fish populations.
• E) The fish can potentially provide more food for humans than the seal meat can.

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Definitions:

Identical Twins

Twins who are genetically identical because they were conceived from one egg that split into two.

Anxiety Disorders

A group of mental health disorders characterized by significant feelings of anxiety and fear, affecting daily functioning.

Compulsive Behaviors

Repetitive actions driven by an uncontrollable urge, often performed to alleviate anxiety, even though they provide no pleasure and may result in negative consequences.

Anxiety Reduction

A variety of practices and treatments aimed at reducing the symptoms of anxiety.