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nmdcat.online July 14, 2026

In a population of insects, individuals with green coloration survive better on green leaves, while brown individuals survive better on brown branches. During a prolonged drought, leaves die and the forest becomes predominantly brown. What do you predict will happen?

A. The green insects will hibernate until the drought ends.
B. The frequency of the allele for brown coloration will increase in the population.
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C. The insects will actively change their pigment production to turn brown within their lifetimes.
D. The population will go extinct because insects cannot adapt to color changes.

📝 Explanation

The drought alters the environment, making the brown phenotype more advantageous. Brown insects will survive predation better, reproduce more, and increase the frequency of the brown allele.

📖 Additional Information

  • The green insects will hibernate until the drought ends.
  • The frequency of the allele for brown coloration will increase in the population.
  • The insects will actively change their pigment production to turn brown within their lifetimes.
  • The population will go extinct because insects cannot adapt to color changes.

The drought alters the environment, making the brown phenotype more advantageous. Brown insects will survive predation better, reproduce more, and increase the frequency of the brown allele.

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