Given below are some adaptive features of animals:
(i) Layer of fat under the skin
(ii) Long, curved and sharp claws
(iii) Slippery body
(iv) Thick white fur
Which of them are the adaptive features of a polar bear?
(a) (i) only
(b) (i) and (ii) only
(c) (i), (ii) and (iii) only
(d) (i), (ii) and (iv) only
Correct Answer: (d) (i), (ii) and (iv) only
Explanation:
The adaptation of Polar Bears are:1. A white appearance - works as a camouflage, which saves them from being prey on the snow and ice.
2. Large feet - help to distribute their body weight and increase grip on the ice.
3. Thick layers of fat and fur - behaves as insulation against the cold.
4. A greasy coat that sheds water after swimming - helps in reducing heat loss.
5. Muscle hump over the shoulder- helps in catching large/big prey.
6. Small round ears- don't allow the cold waters to enter into the ears.
7. Keen sense of smell- helps to search their prey easily even below the thick layer of ice.
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