Which of the Following Is NOT a Characteristic of Echinoderms

question 51

Multiple Choice

Which of the following is NOT a characteristic of echinoderms?

• A)adult is radially symmetrical
• B)locomotion by muscles
• C)endoskeleton of spiny,calcium-rich plates
• D)larva is bilaterally symmetrical
• E)both sexual and asexual reproduction

---

Definitions:

Sick Role

A concept in medical sociology that describes the social expectations of how an individual behaves when ill, including exemption from normal social roles and responsibilities.

HIV Carriers

Individuals who are infected with the Human Immunodeficiency Virus, which can lead to AIDS, but might not show symptoms.

Abstinence Syndrome

A condition characterized by physical and mental distress occurring in individuals who abruptly stop using addictive substances.

Psychological Dependence

When a person must continue to take a drug to satisfy intense mental and emotional craving for it.