Question

B. Very Short Answer Questions.
1.What do you mean by adaptations?
2, wh
What is an environment and what constitutes an environment?
3. What do you mean by habitat? Give at least two examples.
4. What are hydrophytes?
5. Give special terms for aquatic plants and desert plants.
6. What is the function of swollen petiole in water hyacinth?
I Water on lotus leaf simply slides off or remains on its surface as tiny silvery balls. Why?
8., Give any three adaptations in hydrophytes.
9. What are mesophytes? Give its examples.
10. Which of the things in the following list are non-living?
11. Mention one adaptation present in the following animals:
(i) In camels to keep their bodies away from the heat of sand.
fii) In frogs to enable them to swim.
(iii) in dolphins and whales to breathe in air when they swim near the surface of water ​

Answer 1

1.What do you mean by Adaptation ?

Ans : Adaptation is the physical or behavioural characteristic of an organism that helps an organism to survive better in the surrounding environment

4.What are Hydrophyte?

Ans : a plant which grows only in or on water or Hydrophytes are the plants which live completely or partially submerged in fresh water

3.Habitat

And : the natural home or environment of an animal, plant, or other organism

Answer 2

Answer:

what do you mean by adaptations