Question

A group of red beetles lives on green leaves of a tree. Beetles multiply through sexual reproduction. One day, some green beetles are seen among the red beetles. Green beetles breed to produce green progeny. Crows on the tree eat beetles. The colour composition of the beetle population is likely to change in the following manner.

• A. Both red and green beetle survive equally
• B. Only the red beetle survives
• C. More red beetles survive than the green
• D. More green beetles survive than the red

Answer 1

Answer: (D)

More green beetles survive than the red

• There are red beetles which live on the leaves and are consumed by the crows.
• The red beetles evolve and change the color from red to green. This green colored beetles cannot be identified by the crows against the green color leaves and will be protected from the crows.
• So, the number of the green beetles will survive more than the red beetles.
• Thus, the correct answer is option D.