Researchers Studying Guppies in Trinidad Found That Guppies in Streams

question 13

Multiple Choice

Researchers studying guppies in Trinidad found that guppies in streams with high predation reproduced earlier and more frequently.Which of the following is most important in driving the guppies to change their life history in face of predation?

• A)The guppies are an equilibrium species.
• B)The guppies are an opportunistic species.
• C)Density-independent factors affects the guppy populations.
• D)Density-dependent factors affects the guppy populations.
• E)Sexual selection affects the guppy populations.

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Definitions:

Supply

The total amount of a specific good or service that is available to consumers at a given time and price.

Demand

Refers to the quantity of a good or service that consumers are willing and able to purchase at various prices during a given period.

Government Storage

involves the holding or preservation of goods by the government, typically for strategic reserves or to stabilize market prices.