A. Fill in the blanks with suitable words.
1. The habitat of plants and animals that live on land is called terrestrial habitat.
2. Plants and animals living in water are called acquatic organisms.
3. Soil, air and water are the abiotic components of a habitat.
4. Trees are normally cone-shaped on the mountains.
5. A cactus plant occurs in a desert habitat
6. Plants and animals form the biotic components of habitat.
7. Plants with fleshy stems are called succulent plants.
8. Trees growing on mountains have shapes to allow snow to slide-off easily.
B. Multiple choice questions-
1. Organisms that live on land are
ans. terrestrial
2. Long eyelashes to prevent sand from reaching the eyes are found in
ans. camel
3. Which of the following plants grows in dry areas?
ans. cactus
4. Which of the following is not a terrestrial habitat?
ans. fresh water
5. Hibernation is an adaptation for
ans. escaping cold weater
6. Camel excretes
ans. Solid pallets
7. Leaves are modified into spines in
ans. cactus
C. Very Short answer questions (One Word)
1. Name one desert animal
ans. camel
2. Name arboreal animal
ans. Monkey
3. Name given to plants with fleshy stems
ans. succulent
4. Type of feet found in frogs
ans. webbed feet.
5. Dolphins breathe through gills.
ans. False
6. One word for, "hiding by merging with the surroundings"
ans. camouflage
7. Winter sleep of some animals.
ans. Hibernation
8. Shape of a fish
D. Short Answer Questions
1. Define:-
a. Ecology :-
The study of relationship between living things and their environment.
b. Environment:-
Everything that surrounds living organisms and affects their growth and development.
2. How does grass survive in windy condition?
ans. Grass can survive in windy condition because of the following conditions
(i) It has strong roots
(ii) Its leaves small to reduce loss of water.
(iii) It has flexible stalks so that they bend and do not break in strong winds.
3. How does hibernation help?
ans. Hibernation helps the animals to save energy and survive the winter without eating much. They utilize the fat stored in their body?
4. Why are green plant called producers?
ans. Green plant called producers because they make their own food by photosynthesis.
5. What will happen if the organisms do not adopt to their environment ?
ans. Organisms cannot survive if they do not adopt to their environment.
6. Write two adaptation of trees in tropical rain-forests.
ans. Two adaptation are
(i) Leaves on trees have grooves and drip tips that allow water to drip easily.
(ii) Vegetation at levels has large leaves to absorb as much sunlight as possible.
E. Long answers
1. Describe the two components of environment. How do they interact with each others?
ans. Our environment has got two components
1. Living or biotic components
2. Non-living abiotic components
Biotic Components:-
They include all the living organisms. These make the biotic or biological environment. The living organisms are divided into-producers, consumers and de-composers, depending upon the type of food they eat. Biotic components are sub-divided into two parts i.e. Producers:- Greens plants include in the category as they produce their own food by photosynthesis.
Consumers :- All animals include in the category as they cannot make their own food and depend on plants directly or indirectly for their food
Abiotic Components
Abiotic Components include non-living components like air, water, soil, temperature and sunlight.
There is constant interaction between the biotic and abiotic components. For example plants need sunlight and water to prepare food. Animals also cannot live without air, water etc.
To continued ......
Previous chapter- Body Movements class VI.
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