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"Invigilation" Is Defined As

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"Invigilation" is defined as:


Definitions:

Spicules

Small, pointed structures made of calcium carbonate or silica found in sponges and some other invertebrates, serving as structural support and defense.

Tracheal Tubes

A system of small tubes in insects that carries oxygen directly to tissues and organs.

Exoskeleton

A rigid external covering that supports and protects the bodies of certain animals, such as insects, crustaceans, and some mollusks.

Echinodermata

A phylum of marine animals including sea stars, sea urchins, and sea cucumbers, characterized by radial symmetry and a unique water vascular system.

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