At the moment of sperm penetration, human eggs
A) have used flagellar propulsion to move from the ovary to the oviduct.
B) accept as many sperm as possible in order to select the one with the highest fertility.
C) are still located within the ovary.
D) have a paper-thin cell of calcium carbonate that prevents desiccation.
E) are still surrounded by follicular cells.

Question

Quizplus · Accepted Answer

When the sperm penetrates the human egg, it is still surrounded by follicular cells, which are important for protecting and nourishing the developing embryo. Choices A, B, C, and D do not accurately describe the location or characteristics of the egg at the moment of sperm penetration.

At the Moment of Sperm Penetration, Human Eggs