Which of These Statements Applies to the Fast Block to Polyspermy

question 41

Multiple Choice

Which of these statements applies to the fast block to polyspermy?

• A) more pronounced in invertebrates than in vertebrates
• B) occurs within hours after fertilization
• C) mediated by Ca²⁺ ions
• D) does not involve a wave of electrical depolarization that spreads over the egg surface

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Definitions:

Last-In, First-Out

An inventory valuation method that assumes the items most recently purchased or produced are sold first, leaving older inventory in stock.

Merchandise Sold

Merchandise sold refers to the products that a company sells to its customers, which can include anything from physical goods to software.

Purchases Made

Transactions involving the acquisition of goods or services by a company for the purpose of resale or for use in production.

Physical Count of Inventory

An actual count of all merchandise or stock on hand, typically conducted at the end of an accounting period to verify inventory records.