Like the Cnidarians, Flatworms Depend on ____ for Achieving Circulation

question 91

Multiple Choice

Like the cnidarians, flatworms depend on ____ for achieving circulation and gas exchange.

• A) hemolymph
• B) diffusion
• C) hearts
• D) blood
• E) lungs

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Definitions:

Latency Stage

A phase in Freud’s psychosexual development occurring between ages 6 and puberty, where sexual urges are repressed, and children focus on social and intellectual skills.

Postpone Gratification

The ability to resist the temptation for an immediate reward and wait for a later reward.

Personality

A unique set of emotional, thought, and behavioral patterns that define an individual's typical responses to situations.

Pleasure Principle

A theory in psychoanalytic psychology proposing that people seek pleasure and avoid pain to satisfy biological and psychological needs.