Match the items of Column A with those of Column B: Column A Column B 1. Xerophytes (a) Area where plant or animal is found in nature. 2. Habitat (b) The period of reduced activity in some animals during winter months. 3. Adaptations (c) Plants that live in water. 4. Hydrophytes (d) Plants that grow in regions that receive very little rainfall. 5. Migration (e) Changes in the structure or behaviour of an organism that help it to survive in a particular habitat. 6. Hibernation (f) Specialized organs that allow animals to breathe underwater. 7. Gills (g) Seasonal movement of animals from one region to another.

1 - (d) Plants that grow in the dry places where there is less rainfall are known as xerophytes. Example - Cactus. 2 - (a) A habitat is a place or area where particular organisms live. The types of habitat are terrestrial, aquatic and aerial habitats. 3 - (e) Adaptation is defined as changes in the structure or behaviour of an organism that help it to survive in a particular habitat. There are three types of adaptations in plants on the basis of habitats- xerophytic, hydrophytic and mesophytic adaptations. 4 - (c) Hydrophytes are the places where there is lots of water and the plants that are grown in this kind of conditions are called hydrophytic plants. Examples- Lotus, Hydrilla , etc. 5 - (g) Seasonal movement of animals from one region to another for their survival is known as migration. Few birds migrate to favourable places when there is a change in seasons. 6 - (b) The period of reduced activity in some animals during winter months is known as hibernation. This is seen in amphibians like frogs. 7 - (f) Gills are the respiratory organs that allow animals to breathe underwater. Animals like fishes and frogs have gills. Column A Column B 1. Xerophytes (d) Plants that grow in regions that receive very little rainfall. 2. Habitat (a) Area where plant or animal is found in nature. 3. Adaptations (e) Changes in the structure or behaviour of an organism that help it to survive in a particular habitat. 4. Hydrophytes (c) Plants that live in water. 5. Migration (g) Seasonal movement of animals from one region to another. 6. Hibernation (b) The period of reduced activity in some animals during winter months. 7. Gills (f) Specialized organs that allow animals to breathe underwater.

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Science Success>Chapter 9 - Living Organisms and Their Surroundings>EXERCISES>Q C

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Vallisneria is a hydrophyte.

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Important Questions on Living Organisms and Their Surroundings

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Science Success>Chapter 9 - Living Organisms and Their Surroundings>EXERCISES>Q C

Green plants can move from one place to another.

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Science Success>Chapter 9 - Living Organisms and Their Surroundings>EXERCISES>Q C

Omnivores feed on both plants and animals.

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Science Success>Chapter 9 - Living Organisms and Their Surroundings>EXERCISES>Q C

Some animals which feed on animal flesh are called carnivores.

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Science Success>Chapter 9 - Living Organisms and Their Surroundings>EXERCISES>Q D

Match the items of Column A with those of Column B:

Column A	Column B
1. Xerophytes	(a) Area where plant or animal is found in nature.
2. Habitat	(b) The period of reduced activity in some animals during winter months.
3. Adaptations	(c) Plants that live in water.
4. Hydrophytes	(d) Plants that grow in regions that receive very little rainfall.
5. Migration	(e) Changes in the structure or behaviour of an organism that help it to survive in a particular habitat.
6. Hibernation	(f) Specialized organs that allow animals to breathe underwater.
7. Gills	(g) Seasonal movement of animals from one region to another.