In Many Echinoderms Respiration and Waste Removal Take Place by Means

question 43

Multiple Choice

In many echinoderms respiration and waste removal take place by means of finger-like projections that occur near the spines,which are called

• A)madreporite.
• B)ampulla.
• C)nerve ring.
• D)papulae.
• E)endoskeleton.

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Definitions:

Rational Approach

A method or strategy based on logic and reasoning, typically aimed at solving problems or making decisions.

Unpredictable

Not able to be predicted; capable of changing or varying without apparent reason or pattern.

Dangerous

Refers to something that is likely to cause harm or injury.

Arab World

A region comprising 22 Arabic-speaking countries in the Middle East and North Africa that share cultural, historical and linguistic ties.