Generally,only One Sperm Fertilizes an Egg Because

question 8

Multiple Choice

Generally,only one sperm fertilizes an egg because

• A) there are so few sperm that two are unlikely to arrive at the same time.
• B) sperm compete and only the most fit one is accepted.
• C) many sperm enter but only one set of chromosomes fuses with the egg nucleus; excess sperm are absorbed.
• D) when the first sperm membrane fuses with the egg membrane, it separates the fertilization membrane and forms a barrier to other sperm.

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Definitions:

Hindsight Bias

The tendency to believe, after an event has occurred, that one would have predicted or expected the outcome, also known as the "knew-it-all-along" effect.

Confounding Variable

An external factor in a research study that correlates with both the dependent and independent variables, potentially skewing results.

Alcoholic Beverage

A drink that contains ethanol, commonly known as alcohol, which is a psychoactive substance.

Control Group

In experimental research, the group that does not receive the treatment or intervention being tested, serving as a baseline for comparison.