WORKSHEET Read the gioen passage carefully: WHY DO ANIMALS HIBERNATE? The word "hibernate' comes from a Latin word which means 'winter sleep. Not all animals in temperate countries hibernate. Some, like the bear, the squirrel and the chipmunk do not really hihar hipmunk do not really hibernate. They do sleep more during the snowing season than in summer but on warm and pleasant dans wake up and come out in the open. A good example of a typical hibernating animal is the woodchuck. Unlike the squirrel, it does not have to work extra hard during the summer months to collect and store food for the cold season. It depends on plant food and when the season comes along: its food supply is gone. However, it has a reserve supply of fat on its own body. Thus, when it can no longer find food, it crawls deep into its burrow and goes to sleep. It sleeps through the whole season and lives on the fat which it has stored in its body The sleep of a true hibernator is almost like death. It is quite different from ordinary sleep. While an animal is hibernating, all its body functions almost stop. The temperature of its body decreases rapidly until it is only slightly higher than the surrounding air in its den. This allows the animal to burn the fatin its body very, very slowly. Since it burns less fuel, less oxygen is released and the result is that its breathing is slower and its heart beats only faintly. If the temperature in the den becomes very low, the hibernating animal wakes up, digs itself a little deeper and goes to sleep once again. The animal is awakened in spring by the change in temperature, moisture and hunger. It then crawls out of its den. It is interesting to know that many cold blooded animals hibernate too. Earthworms crawl down into the earth below the frost line; frogs bury themselves in the mud at the bottom of ponds and snakes crawl into cracks in the rocks or holes in the ground. 5.1 On the basis of your understanding of the passage, answer any eight of the following questions: (a) When do animals hibernate? (b) Why is the bear not a real hibernator? (c) What does a squirrel do in summer? (d) What does the woodchuck eat? (e) Why does its food supply disappear in winter? (f) What does it do when it cannot find food? (g) What does true hibernating resemble? (h) What does the word 'This'in paragraph 3 refer to? (i) How does a hibernating animal know that spring has arrived? Reading Bravia 9
Answers
Answer:
Explanation:
The answers are following –
a. Animals hibernate in the winter season as there is lack of foods during the season.
b. Bear is not a real hibernator as it sleeps during the winter season and come out open in summer.
c. The squirrel comes out open in the summer.
d. The woodchuck gets foods from plants.
e. As the plant loses all its leaves during winter, its food’s supply becomes less.
f. It uses its body fat as food. i. Change of temperature and moisture.
Answer:
during winter animals hibernate because their heart beat ,pulse rate go down .. to conserve energy they hibernate..
b bear is not real hibernator because it sleeps in winter and come out in winter ..
c squirrel come out in summer ..
d wood chucks get food from plants ..
e In winter plants gets start freezing so their leaves get freeze.