Red-coloured beetles are living on green leaves of bushes. These beetles increase in numbers by sexual reproduction. Crows, being their predators, consume beetles and regulate their population. During reproduction, few beetles develop green colour instead of red colour. This variation in body colour gives green coloured beetles an advantage and over the years, the number of green beetles in the population will increase generation after generation.
Which of the following statements are correct regarding the given paragraph:
(i) The given paragraph depicts an example of "ontogeny recapitulates phylogeny".
(ii) Artificial selection is exerted by crows.
(iii) Natural selection is exerted by crows.
(iv) More red-coloured beetles will be eaten up.
(v) The given paragraph depicts an example of convergent evolution.
Red-coloured beetles are living on green leaves of bushes. These beetles increase in numbers by sexual reproduction. Crows, being their predators, consume beetles and regulate their population. During reproduction, few beetles develop green colour instead of red colour. This variation in body colour gives green coloured beetles an advantage and over the years, the number of green beetles in the population will increase generation after generation.
Which of the following statements are correct regarding the given paragraph:
(i) The given paragraph depicts an example of "ontogeny recapitulates phylogeny".
(ii) Artificial selection is exerted by crows.
(iii) Natural selection is exerted by crows.
(iv) More red-coloured beetles will be eaten up.
(v) The given paragraph depicts an example of convergent evolution.
The correct option is B (iii) and (iv) only
The given paragraph is an illustration of an evolutionary process. In this paragraph, the natural selection is exerted by the crows. If the number of crows would have been increased, the more red beetles would be eaten and the number of green beetles would be increased proportionally. This will result in adaptation in the beetle population to adjust to their environmental conditions.
(iii) and (iv) only
The given paragraph is an illustration of an evolutionary process. In this paragraph, the natural selection is exerted by the crows. If the number of crows would have been increased, the more red beetles would be eaten and the number of green beetles would be increased proportionally. This will result in adaptation in the beetle population to adjust to their environmental conditions.
