Question:
Explain the adaptation of plants to live in water.
Answer:
(i) Roots are reduced in size which hold the plant.
(ii) Stems are long, hollow and light.
(iii) Stems grow up to the surface of water.
(iv) Leaves and flowers float on the surface of water.
(v) The leaves are covered by the waxy layer which protects the leaves from excessive water.
Living Organisms and Surroundings
Q 1.
Name a few habitats.
Q 2.
Name some aquatic habitats.
Q 3.
Give two examples of each biotic and abiotic components.
Q 5.
Do plants also excrete?
Q 6.
What kind of movement do we see in plants?
Q 7.
What do you mean by term adaptation?
Q 8.
Name few terrestrial habitats.
Q 13.
Which of the things in the following list are non-living?
Q 14.
What are predators?
Q 15.
Why do we need abiotic factors?
Q 16.
Which of the following non-living things were once part of a living thing?
Butter, Leather, Soil, Wool, Electric Bulb, Cooking Oil, Salt, Apple, Rubber.
Q 17.
Does adaptation take place in a short time?
Q 18.
What is respiration?
Q 19.
Name two examples of aerial habitat animals.
Q 20.
What is reproduction?
Q 21.
What are the differences in the desert and sea regions?
Q 22.
What is the main Junction of food?
Q 24.
Name two organisms that live in deserts.
Q 25.
Name the animal which is called the ship of desert.
Q 26.
What do you mean by germination of seeds?
Q 28.
What is the function of gill?
Q 29.
Name two aquatic animals.
Q 30.
Name a few plants that live in ponds.
Q 31.
Write the difference between living and non-living things.
Q 32.
Name two terrestrial organisms.
Q 33.
What is photosynthesis?
Q 34.
Explain the characteristics oflimng organisms.
Q 36.
Give an example of a non-living thing which shows any two characteristics of living thing.
Q 37.
What do you mean by acclimatisation?
Q 38.
Explain the adaptation of plants to live in water.
Q 39.
Explain the features offish which help it to adapt to live in water.
Q 40.
Name various types of habitat.
Q 41.
Do plants also move?
Q 42.
How are camels adapted to live in desert?
Q 43.
Frogs can live both on land and in water, name the adaptations seen in these animals.
Q 44.
What are blowholes?
Q 45.
Explain the adaptation of animals to live in mountain region.
Q 46.
Fill in the blanks:
(a) The presence of specific features which enables a plant or an animal to live in a particular habitat is called___________ .
(b) The habitats of the plants and animals that live on land are called _________________ habitats.
(c)The habitats of plants and animals that live in water are called ____________________ habitats.
(d) Soil, water and air are the____________ factors of a habitats.
(e) Changes in our surroundings that make us respond to them are called
Q 47.
Explain why speed is important for survival in the grasslands for animals that live there. (Hint: There are few trees or places for animals to hide in grasslands habitats).
Q 48.
Name a common thing in all fishes.
Q 49.
Name some plants found on mountains.
Q 50.
Name the habitat where various types of fish live.
