The environment that would tend to reduce genetic variation in a population because of evolution by natural selection is grasslands that are undergoing severe drought. Severe drought puts significant stress on populations, favoring individuals with traits that allow them to survive under those specific conditions. This can lead to a reduction in genetic variation as those traits become more prevalent in the population, while other less favorable traits may be lost.
Which type of environment would tend to reduce genetic variation in a population because of evolution by natural selection? (1 point)
• a tropical rainforest that is being deforested for farmland
• grasslands that are undergoing severe drought
• an old growth forest with trees that are over 1,500 years old
• an ocean ecosystem that is becoming more acidic
1 answer
1 answer