Which Animal(s)can Get Needed Oxygen by Diffusion of the Gas

question 29

Multiple Choice

Which animal(s) can get needed oxygen by diffusion of the gas across a body surface and can distribute oxygen without the need of a specialized circulatory system?

• A) fish
• B) flatworms
• C) fish and flatworms
• D) sea anemones
• E) sea anemones and flatworms

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Definitions:

Cocaine

A powerful stimulant drug derived from the leaves of the coca plant, known for its potent effects on the central nervous system.

Amphetamines

A class of stimulant drugs that increase activity in the brain and are used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Sleep-inducing

Refers to substances or activities that promote the onset of sleep by affecting various biochemical or physiological mechanisms.

Pain-relieving

A characteristic of interventions, medications, or methods that reduce or eliminate pain.