Describe the adaptations with examples for animals living in (i) snow region (ii) tropical forest (iii) desert region.
Answers
Answered by
0
Adaptation in Snow region/ low temperature region/ polar region
The polar regions present an extreme climate. These regions are covered with snow and it is very cold for most part of the year. The animals living in polar region have adapted themselves to these severe conditions.
- Mammals from colder climates generally have shorter ears and limbs to minimize heat loss ( Allen's rule).
- In the polar seas aquatic mammals like seals have a thick layer of fat called blubber below their skin that acts as an insulator and reduces heat loss.
Adaptation in Tropical region
The tropical region has generally a hot climate because of its location around the equator. Many animals have adapted to the unique conditions of the tropical rainforests.
- Animals in the tropical rainforests are adapted such that they eat different kinds of food to overcome the competition for food and shelter.
- The sloth uses camouflage and moves very slowly to make it difficult for predators to spot.
- The spider monkey has long, strong limbs to help it to climb through the rainforest trees.
Adaptation in desert region
Two characteristics of the desert i.e., high temperature and scarcity of rainfall determine the occurrence, distribution and adaptations of desert animals.
- Insects and reptiles of the desert have impervious integument and excrete nitrogen in the form of uric acid.
- In the absence of an external source of water, the kangaroo rat is capable of meeting all its water requirement through its internal fat oxidation
- They conserve water by excreting highly concentrated urine and by not using water for temperature regulation. Hibernation is necessary for many ectothermic animals of the desert.
Similar questions