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Science, , (Chapter — 9) (The Living Organisms and Their Surroundings), (Class - v1), , Exercises, , , , Question, What is a habitat?, , € Answer 1:, , Habitat means a dwelling place (a home). The surroundings where organisms live is, called a habitat. The organisms depend for their food, water, air, shelter and other needs, on their habitat. Several kinds of plants and animals may share the same habitat., , Question 2:, How are cactus adapted to survive in a desert?, , € Answer 2:, , Cactus lose very little water through transpiration, The leaves in cactus plants are present, in the shape of spines. This helps in reducing loss of water from the leaves through, transpiration. Its stem is converted into a leaf-like structure. Photosynthesis in these, plants is usually carried out by the stems. The stem is also covered with a thick waxy, layer, which helps to retain water. Cactus plants have roots that go very deep into the soil, for absorbing water.