Question:
Write the features of desert plants.
Answer:
(i) The leaves in desert plants are either absent or very small.
(ii) Leaves are converted into spines which help to reduce loss of water.
(iii) The stems become thick, flat and green which help in photosynthesis.
(iv) The stem is covered with waxy layer which helps to retain water. In some plants stem is spongy and stores water.
(v) The roots go very deep in the soil to absorb water.
Living Organisms and Surroundings
Q 1.
Name a few habitats.
Q 2.
Name some aquatic habitats.
Q 3.
Do plants also excrete?
Q 4.
Give two examples of each biotic and abiotic components.
Q 7.
What kind of movement do we see in plants?
Q 8.
Name few terrestrial habitats.
Q 9.
What do you mean by term adaptation?
Q 13.
Which of the things in the following list are non-living?
Q 14.
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 15.
What are predators?
Q 16.
What is reproduction?
Q 17.
Why do we need abiotic factors?
Q 18.
Write the difference between living and non-living things.
Q 19.
Name two organisms that live in deserts.
Q 20.
What do you mean by germination of seeds?
Q 21.
What is the main Junction of food?
Q 22.
What is respiration?
Q 23.
Does adaptation take place in a short time?
Q 24.
Name a common thing in all fishes.
Q 25.
Name two examples of aerial habitat animals.
Q 26.
What is the function of gill?
Q 30.
Name two aquatic animals.
Q 31.
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 32.
Name two aquatic animals which have no gills.
Q 33.
Name the animal which is called the ship of desert.
Q 34.
Name two terrestrial organisms.
Q 35.
Name some plants found on mountains.
Q 36.
What is photosynthesis?
Q 37.
How are camels adapted to live in desert?
Q 38.
Explain the adaptation of plants to live in water.
Q 39.
Do plants also move?
Q 40.
Explain the features offish which help it to adapt to live in water.
Q 41.
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 42.
Write the features of desert plants.
Q 43.
Explain the characteristics oflimng organisms.
Q 44.
Name various types of habitat.
Q 45.
Explain the adaptation of trees to live in mountain regions.
Q 46.
Name the habitat where various types of fish live.
Q 47.
Name the types of components of habitat.
Q 48.
What are the differences in the desert and sea regions?
Q 49.
Frogs can live both on land and in water, name the adaptations seen in these animals.
Q 50.
What do you mean by acclimatisation?
