InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Some organisms suspend their metabolic activities to survive in unfavourable conditions. Explain with the help of any four examples. |
|
Answer» (a) The frogs hibernate during very cold season and reduce their metabolic activities. (b) The kangaroo rat has the ability to concentrate its urine and can live from birth to death without drinking water, thereby conserving water. (c) Barnacles and molluscs, living in very cold intertidal zones of northern shores, show their reduce activities. (d) Some animals go to summer sleep. Detailed Answer: (i) Polar bear : They hibernate during winter to escape the cold weather. (ii) Snails/fishes : They go into aestivation during summer to avoid heat related problems and desiccation. (iii) Seeds of higher plants/spores of bacteria/fungi : They become dormant in unfavourable conditions and in case of Amoeba, cyst formation takes place. (iv) Some species of zooplankton : They undergo diapause. |
|