Why Doesn't a Flatworm Have a Circulatory System

question 1

Multiple Choice

Why doesn't a flatworm have a circulatory system?

• A) The animal is flat enough to permit effective gas exchange by diffusion.
• B) There is not enough room for a circulatory system.
• C) The animal lacks muscles, so it could not have a heart to pump blood.
• D) Only bilaterally symmetrical animals need a circulatory system.
• E) Only vertebrates have circulatory systems.

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Public Office

Positions of authority or service in a government or community, held by individuals tasked with serving the public interest.

Non-Discrimination

The principle of treating all people equally, without bias towards race, gender, age, or other characteristics.

Institutional Racism

A form of racism that is embedded through laws, regulations, and customary practices within society or an organization, systematically disadvantaging certain racial groups.

Systematic Differences

Variation or disparities that are structured and consistent within a system.