What Was One Study That Led to the Conclusion That

question 66

Multiple Choice

What was one study that led to the conclusion that sperm cells were necessary for fertilization?

• A) Leeuwenhoek saw fertilization of an egg by a sperm.
• B) Male frogs wearing little trousers were able to mate but did not produce any offspring
• C) Male fruit flies that were castrated could mate but could not produce offspring.
• D) Female fruit flies were fooled into mating with other female fruit flies, and no offspring resulted.
• E) Sterilized frog semen, when mixed with frog eggs, did not result in fertilization.

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Definitions:

Hazardous

Describes substances or conditions that pose a risk of causing harm to people, property, or the environment.

Tripping

The act of stumbling or falling caused by catching one's foot on something.

Bumping

A process in workforce management where more senior employees displace less senior ones from their positions, often in situations of layoffs or reductions in force.