Why Is the Head of a Sperm Covered with a Sac

question 67

Multiple Choice

Why is the head of a sperm covered with a sac of enzymes?

• A)The enzymes are used to prevent other sperm from entering the egg after the sperm and egg membranes have fused.
• B)The enzymes are needed to digest a hole in the protective "shell" surrounding the egg.
• C)The enzymes are released to kill other sperm so that, by the time sperm reach the egg, only a hundred or so remain to compete with.
• D)The enzymes are gradually released into the sperm, where they break down sugars, releasing the energy needed to power sperm movement.

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Definitions:

Financial Information

Data and facts related to the monetary performance and position of an entity, including revenues, expenses, assets, and liabilities.

Debt Ratio

A financial ratio that measures the proportion of a company's total debt to its total assets.

Balance Sheet

A report showing a firm's holdings, debts, and owner's equity on a certain date.

Corporation

A legal entity separate from its owners, with rights and responsibilities, capable of entering contracts, suing, and being sued.