Ecology at the organismic level is essentially:
1. Physiological ecology
2. Biochemical ecology
3. Anatomical ecology
4. Pathological ecology
Assertion (A): | In every species, there are trade-offs between survival and reproductive traits. |
Reason (R): | Life history traits are products of natural selection. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Biosphere is:
1. | A component in the ecosystem |
2. | Composed of the plants present in the soil |
3. | Life in the outer space |
4. | Composed of all living organisms present on earth which interact with the physical environment |