In Sea Urchins, Which of the Following Pairs of Events

question 15

Multiple Choice

In sea urchins, which of the following pairs of events most directly results in the short-lasting "fast block" and the longer-lasting "slow block" to polyspermy, respectively?

• A) the acrosomal reaction and vitellogenesis
• B) the cortical reaction and the formation of yolk protein
• C) formation of the jelly coat and the vitellin membranes
• D) membrane depolarization and the cortical reaction

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Definitions:

Individual Differences

Variations among people in their behavior, personality, cognitive abilities, or physical traits.

Correlational Methods

Research strategies used to observe and statistically analyze the relationship between two or more variables, without necessarily determining cause and effect.

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A quantitative measure of the strength of a phenomenon or the magnitude of a difference between groups in a scientific study, indicating the practical significance of research results.

Inconsistency

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