(i) | Success of mammals on earth is mainly due to their ability to maintain a constant body temperature |
(ii) | Migration is restricted to animals only. In plants, even the propagules (spores and seeds) cannot migrate |
(iii) | Diapause is a stage of suspended development in many zooplanktons |
(iv) | Most of the animals can maintain internal homeostasis |
(v) | In conformers, the body temperature changes with the ambient temperature but the osmotic concentration of the body fluids does not change with that of ambient water osmotic concentration |
Assertion (A): | Among red, green and brown algae, the red algae are found in the deepest ocean. |
Reason (R): | Red algae possess phycobilins, which can absorb the blue and green light that penetrates the deepest water. |
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 |
Assertion: | The triangular age pyramid is a graphic representation of a young or growing population. |
Reason: | An age pyramid is a graphic representation of proportion of various age group of population. |
1. | Both assertion and reason are true and the reason is the correct explanation of the assertion |
2. | Both assertion and reason are true but the reason is not the correct explanation of the assertion |
3. | Assertion is true but reason is false |
4. | Both assertion and reason are false |
Assertion (A): | The Mediterranean orchid Ophyrus employs 'sexual deceit' to get pollinated by some male bees. |
Reason (R): | Plant-animal interactions never involve co-evolution. |
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 |
(i) | Lactic acid bacteria produce acids that coagulate and partially digest the milk protein during curd making |
(ii) | Curd is less nutritious than milk |
(iii) | Cheese is partially degraded concentration of milk fat and casein |
(iv) | Large holed swiss cheese is ripened by fungi propionibacterium sharmanii |
(v) | Probiotics are live microbial food supplements |