NYS Biology Regents Practice 2

A predatory sea slug eats hydrozoans that have just eaten plankton. What advantage does this give the sea slug?

• It reduces competition for food.

• It allows the sea slug to obtain more energy in one meal.

• It helps the sea slug digest food faster.

• It increases the number of hydrozoans.

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NGSS.HS-LS2-3

If kleptopredation becomes common in an ecosystem, what might be a likely effect on the prey population (such as hydrozoans)?

• Prey population will increase rapidly.

• Prey population will remain unchanged.

• Prey population may decrease due to increased predation pressure.

• Prey population will never be affected.

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NGSS.HS-LS2-6

How does kleptopredation alter the movement of energy in a food web compared to standard predator-prey interactions?

• It reduces energy transfer in the ecosystem.

• • It adds extra steps that waste energy.

• It allows direct transfer of energy from the prey's prey to the predator, making energy transfer more efficient.

• It prevents energy from being recycled.

Answer explanation

It allows direct transfer of energy from the prey's prey to the predator, making energy transfer more efficient.

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NGSS.HS-LS2-3

NGSS.HS-LS2-6

Describe how kleptopredation could affect the populations of both predators and prey in a marine ecosystem. Use an example from the reading (such as sea slugs, hydrozoans, and plankton) to support your answer.

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NGSS.HS-LS2-6

Suppose scientists introduce a new species that practices kleptopredation into a balanced ecosystem. Predict and explain at least two possible impacts this could have on food web dynamics and biodiversity. Justify your reasoning based on concepts of energy transfer and predator-prey relationships.

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-6

Which of the following is NOT a characteristic of lipids?

• Hydrophobic nature

• Presence of hydrocarbon chains

• Ability to dissolve in water

• Role in energy storage

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Analyzing

How do lipids contribute to the structure and function of cell membranes?

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Applying

Evaluate the role of lipids in energy storage and provide examples from the animal kingdom.

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Evaluating

Which of the following lipids is known for partially dissolving in water?

• Oils and fats

• Waxes

• Phospholipids

• Sterols

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Analyzing

What is the significance of the amphiphilic nature of phospholipids in biological systems?

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Applying