Which One of the Following Predictions Follows from the Sexual

question 26

Multiple Choice

Which one of the following predictions follows from the sexual selection hypothesis for why giraffes have long necks?

• A)In contests over females,the best-nourished male should always,or almost always,win.
• B)In contests over females,the male with the longest neck should have an advantage over the other males.
• C)In natural populations,female neck length should decline over time.
• D)Young males that are given extra amounts of high-quality food should grow particularly long,strong necks.

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Definitions:

Exotic Fish

Fish species that are not native to a specific location, often kept in aquariums or introduced to new environments where they can sometimes become invasive.

Common Resources

Natural or man-made resources that are not excludable but are rival in consumption, such as fish in the sea or public parks.

Excludable

A characteristic of a good or service that means it can be prevented from being used by people who have not paid for it.

Private Goods

Goods that are excludable and rivalrous, meaning one person's consumption prevents another's and consuming the good diminishes its availability for others.