Asked by Skylar Whobrey on Jun 11, 2024
Verified
A long-term study on guppies illustrates the effect of predation on life history traits. In this study, what occurred when guppies from streams with cichlids (which prey on larger guppies) were moved to streams with killifish (which prey on smaller guppies) ?
A) Guppies became larger in one generation.
B) Guppies became smaller in one generation.
C) Guppies became larger over several generations.
D) Guppies became smaller over several generations.
E) Guppies did not change size.
Life History Traits
Characteristic patterns and schedules of an organism’s growth, reproduction, and survival.
Guppies
Small freshwater fish species, often used in aquariums, known for their vibrant colors and prolific breeding.
Predation
The preying of one animal on others, a biological interaction where a predator feeds on its prey.
- Comprehend how environmental stressors influence life history characteristics, encompassing the impacts of predation and human endeavors.
Verified Answer
ZK
Zybrea KnightJun 14, 2024
Final Answer :
C
Explanation :
Guppies adapted to the new predation pressure over several generations by becoming larger, as killifish prey on smaller guppies, selecting for traits that favor larger size in the guppy population.
Learning Objectives
- Comprehend how environmental stressors influence life history characteristics, encompassing the impacts of predation and human endeavors.
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