The Cortical Reaction of Sea Urchin Eggs Functions Directly in

question 72

Multiple Choice

The cortical reaction of sea urchin eggs functions directly in

• A) the formation of a fertilization envelope.
• B) the production of a fast block to polyspermy.
• C) the release of hydrolytic enzymes from the sperm.
• D) the generation of an electrical impulse by the egg.
• E) the fusion of egg and sperm nuclei.

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Definitions:

High Mountains

Elevated landforms reaching great heights above the surrounding terrain, often formed by tectonic processes like collision and rifting.

Transform Boundary

A plate boundary in which two tectonic plates move horizontally past one another.

Oceanic Divergent Boundary

A tectonic plate boundary where two oceanic plates are moving apart, leading to the creation of new sea floor through volcanic activity.

Convergent Boundary

A plate-tectonic boundary in which two plates move toward (converge) relative to one another.