Question
Which type of environment would tend to reduce genetic variation in a population because of evolution by natural selection?(1 point)
Responses
an old growth forest with trees that are over 1,500 years old
grasslands that are undergoing severe drought
a tropical rainforest that is being deforested for farmland
an ocean ecosystem that is becoming more acidic
Responses
an old growth forest with trees that are over 1,500 years old
grasslands that are undergoing severe drought
a tropical rainforest that is being deforested for farmland
an ocean ecosystem that is becoming more acidic
Answers
GPT-4o mini
The type of environment that would tend to reduce genetic variation in a population because of evolution by natural selection is **grasslands that are undergoing severe drought**.
In such an environment, the severe drought would impose strong selective pressures on the population, favoring only those individuals that possess traits suited to surviving in dry conditions. This can lead to a decrease in genetic variation as the less suited individuals may die off, promoting a more homogeneous population adapted to the specific stressor of drought.
In such an environment, the severe drought would impose strong selective pressures on the population, favoring only those individuals that possess traits suited to surviving in dry conditions. This can lead to a decrease in genetic variation as the less suited individuals may die off, promoting a more homogeneous population adapted to the specific stressor of drought.