Match each item in Column I with one item in Column II and chose your answer from the codes given below.
Column I |
Column II |
I. Homologous organs II. Analogous organs III. Vestigeal organs |
1. Eye of an octopus and the eye of a mammal 2. Thorn of Bougainvillea and tendril of Cucurbita 3. Body hair and wisdom teeth in humans |
Codes:
I | II | III | |
1. | 1 | 2 | 3 |
2. | 3 | 1 | 2 |
3. | 2 | 1 | 3 |
4. | 1 | 3 | 2 |
Assertion: | Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. |
Reason: | Natural selection is a key mechanism of evolution. |
1. | (A) is True but (R) is False |
2. | (A) is False but (R) is True |
3. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
4. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
1. | Natural resources are limited. |
2. | Populations go on increasing in size as they have unlimited fertility. |
3. | No two individuals are alike in a population. |
4. | Most of variations are inherited |