Consider the Components of a Four-Step Food Chain: Producers, Herbivores

question 28

Multiple Choice

Consider the components of a four-step food chain: producers, herbivores, carnivores, top predators. If everything is eaten at each level, how much of the energy stored by a producer is passed to the top predator?

• A) 100%
• B) 10%
• C) 1%
• D) 0.1%
• E) 0.01%

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Definitions:

Reality Principle

A psychoanalytic concept that represents the ability of the mind to assess the external world and act upon it accordingly, often as a counterbalance to the pleasure principle.

Id

In psychoanalysis, the part of the mind responsible for basic instincts and drives.

Sexual Drive

Sexual drive, or libido, is an individual's overall sexual desire or desire for sexual activity.

Human Activity

Any action or task performed by humans, which can include work, leisure, and daily living activities.