Which Feature of Echinoderms Allows Them to Feed on the Soft

question 137

Multiple Choice

Which feature of echinoderms allows them to feed on the soft body parts of bivalves?

• A) Mucus-secreting tube feet
• B) Eversible stomach (ability to push the stomach out through the mouth)
• C) Radula with a capacity to drill through shells
• D) Proboscis
• E) Internal skeleton of calcified plates

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Definitions:

Instrumental Aid

Assistance provided through means or tools that contribute directly to achieving a task or goal.

Socializing

The process of interacting with others to build relationships, learn social norms, and develop social skills.

Type A Behavior Pattern

A personality trait characterized by high levels of competitiveness, aggressiveness, impatience, and a constant sense of urgency, often associated with an increased risk of heart disease.

Type B Behavior Pattern

A personality type characterized by relatively relaxed, non-urgent approach to life, in contrast to the more intense, competitive nature of Type A behavior.