4. Adaptations for Survival in Animals
A. Fill in the blanks.
1. Terrestrial animals have well-developed _____________________ systemand sense organs which enable them to sense the changes in their
surroundings.
2. _____________________ have sharp cutting teeth called incisors.
3. Some animals imitate or mimic other animals for _____________________.
4. _____________________ is a process by which animals confuse their
predators.
B. Answer the following questions.
1. What is an adaptation?
2. How is a camel adapted to live in hot deserts?
3. Give three adaptations of aquatic animals.
4. How are arboreal animals adapted to their habitat?
5. Mention the characteristic features of:
(a) Parasites (b) Carnivores (c) Herbivores
6. What is camouflaging? Give examples of some animals that camouflage.
7. Why do some animals mimic other animals.
8. Who do we call the carnivores which eat the flesh of dead animals only?
9. Name a disease caused by parasites.
10. What do ducks and geese swim with the help of?
11. How do aquatic animals swim?
C. Match the following.
Column A Column B
1. Birds (a) Sucking tubes
2. Habitat (b) Zebra
3. Blubber (c) Moth caterpillar
4. Camouflaging animal (d) Hollow bones
5. Parasites (e) A thick layer of fat under the skin
6. Mimicry (f) The natural home of an animal
D. Tick the correct answer
1. Which of these is an arboreal animal?
(a) Peacock (b) Monkey (c) Bear
2. Which of these animals can blend with its surroundings and confuse its
enemies?
(a) Polar bear (b) Giraffe (c) Duck
3. Carnivores have sharp, pointed and curved front teeth called
(a) molars (b) incisors (c) canines
4. The long sleep of animals during the cold season is called
(a) adaptation (b) hibernation (c) migration
5. Aquatic animals breathe through their
(a) lungs (b) moist skin (c) gills
6. Which of these have long and strong legs to travel long distances in
search of food?
(a) Deer (b) Lion (c) Bear
7. Which of these is not an amphibian?
(a) Lemur (b) Frog (c) Toad
8. Animals that can fly are called
(a) amphibians (b) aerial animals (c) arboreal animals (d) parasites
E. Name the categories to which these animals belong.
1. frogs, toads, salamanders, newts
2. mosquitoes, fleas, lice, leeches
3. monkeys, chimpanzees, flying squirrels, lemurs
F. Define
1. Habitat 2. Extinct Animals 3. Migration and migratory birds
4. Arboreal animals
G. State whether true or false.
1. Amphibians are animals that cannot live both on land and water.
H. Complete the following web charts.
1.
2.
I. Complete the given crossword puzzle with the help of the clues.
Across
2. The natural home of an animal (7)
3. Changing body colour to blend with the surroundings (10)
6. Cows belong to this category (9)
Down
1. An animal that survives on other living organisms (8)
4. Animals whose feet and hands are adapted for seizing, grasping and holding
objects (8)
5. The act of imitating another organism (7)
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