Question

EXERCISES
A. VERY SHORT ANSWER.TYPE QUESTIONS
1. Name two organisms belonging to aquatic and terrestrial habitat.
2. What do animals like snake and rat do to stay away from intense heat in deserts ?
3. Name one each of the following living organisms :
(a) that reproduce by laying eggs,
(b) that reproduce by giving birth to the young ones.
4. Name the two components of a habitat with example.
B. SHORT ANSWER TYPE QUESTIONS
- 1. What is meant by adaptation ?
2. Give two characteristics of the animals showing aquatic adaptation.
3. What happens during respiration ?
4. What is meant by habitat ? Name the various habitats in the biosphere.
5. Distinguish between aquatic and terrestrial habitats.
C. LONG ANSWER TYPE QUESTIONS
1. How do desert plants adapt themselves to the conditions in the desert ?
2. How are trees adapted to the cold conditions in mountain region ?
3. How is a tiger adapted to a grassland ?
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Answer 1

The questions can be answered as follows:

Explanation:

• Two organisms belonging to aquatic habitat are octopus and salmon fish. Two organism belonging to terrestrial habitat are cat and dog.
• Animals like snake and rat can bury themselves in surface to stay away from intense heat.
• 3.a) frog and snake b) human and elephant
• 4. Two components of a habitat are the biotic and the abiotic factors. Example of biotic factor is the plants and other animals, example of abiotic factor is water and sunlight.

Answer 2

what is meant by adaptation