DAV Class 3 Science Chapter 5 Animals solutions from DAV textbook My Living World. Comprehensive answers for terrestrial animals, aquatic animals, desert animals, forest animals, camouflage, and animal habitats with original book photos.
« Previous: Chapter 4 Importance of Plants | DAV Class 3 Science All Chapters | Next: Chapter 6 Feeding Habits »
Chapter Overview: Animals & Their Habitats (Class 3 Science)
The place where an animal lives naturally is called its habitat. Based on their natural habitat, animals are classified into terrestrial animals (land animals living in plains, forests, deserts, and snowy regions) and aquatic animals (animals living in ponds, rivers, and oceans).
A. Fill in the blanks.
1. Land animals are also called terrestrial animals.
Explanation: Terrestrial animals spend their lives on soil, plains, hills, or underground burrows.
2. Animals living in water are called aquatic animals.
Explanation: Fish, whales, octopuses, and crabs live inside water bodies.
3. Camels can live without water for many days.
Explanation: Camels have humps to store fat and can survive up to two weeks without drinking water.
4. Fish have fins for swimming and gills for breathing.
Explanation: Gills extract dissolved oxygen from water, and fins balance and propel the body.
5. A frog can live both on land and in water.
Explanation: Animals that live both on land and in water are called amphibians.
B. Match the following:
Verified matching table based on animal habitats:
| Animal | Habitat / Natural Home | Adaptive Feature |
|---|---|---|
| 1. Camel | Desert | Padded feet to walk easily on hot loose sand. |
| 2. Polar Bear | Cold Snowy Regions | Thick layer of white fur and fat under skin. |
| 3. Fish | Ponds / Rivers / Oceans | Streamlined body with fins and breathing gills. |
| 4. Frog | Land and Water (Amphibian) | Moist skin for water breathing and webbed feet. |
| 5. Tiger | Forests & Grasslands | Striped coat that camouflages among tall grass. |
C. Tick the correct option.
1. An animal that lives in a desert is—
(a) penguin
(b) camel
(c) shark
(d) frog
Answer: (b) camel
Explanation: Camels are nicknamed the ‘Ship of the Desert’ due to their ability to endure extreme heat and scarce water.
2. It breathes through gills.
(a) dog
(b) camel
(c) fish
(d) sparrow
Answer: (c) fish
Explanation: Gills absorb oxygen dissolved in water.
3. Nature protects polar bears from extreme cold by providing them with—
(a) fins
(b) padded feet
(c) thick fur
(d) webbed feet
Answer: (c) thick fur
Explanation: Thick white fur and blubber trap body heat in icy polar climates.
4. It is not an aquatic animal.
(a) whale
(b) starfish
(c) horse
(d) octopus
Answer: (c) horse
Explanation: A horse is a terrestrial land animal living on grassy plains.
D. Answer the following questions in brief.
Question 1: Name any four land animals.
Answer: Four land (terrestrial) animals are: Cow, Horse, Dog, and Elephant.
Question 2: Name any two things that forests provide to animals.
Answer: Forests provide:
- Natural food: Grass, leaves, fruits, and prey animals.
- Shelter & safety: Caves, hollow trees, and dense foliage to hide from enemies and weather.
Question 3: How do fins and gills help a fish?
Answer:
- Fins help the fish to swim, change directions, and maintain balance in water.
- Gills absorb dissolved oxygen from water so the fish can breathe underwater.
Question 4: Why do frogs need water?
Answer: Frogs need water because they lay their eggs (spawn) in water and their young ones (tadpoles) can only breathe and swim in water. Also, frogs keep their skin moist with water to breathe through their skin.
Question 5: Why are dogs and cats favourite pets of many people?
Answer: Dogs are friendly, loyal, playful, and guard our homes against strangers. Cats are affectionate, quiet, and catch mice and pests. Both make loving companions for humans.
E. Answer the following questions.
Question 1: State the special features which help a camel to live in a desert.
Answer: Camels have special body features to survive in the hot, dry desert:
- Wide Padded Feet: Broad, soft pads underneath their hooves prevent them from sinking into loose, burning sand.
- Hump on the Back: Stores fat that can be broken down into energy and water when food is scarce.
- Long Eyelashes & Sealable Nostrils: Protect their eyes and nose from blowing desert sandstorms.
- Water Conservation: Can drink up to 100 litres of water at once and excrete very little sweat and urine.
Question 2: How do skin colours and body patterns of some animals help to save them from danger?
Answer: The colour, skin texture, and body patterns of many animals blend perfectly with their surroundings. This ability is called camouflage:
- Zebra and Tiger: Their vertical stripes match tall savannah grass, confusing predators and prey.
- Chameleon: Changes its skin colour to match the green leaves or brown tree bark it sits on.
- Polar Bear: Its pure white fur merges with the white Arctic snow, making it invisible to enemies.
Question 3: Why are dolphins considered to be intelligent animals?
Answer: Dolphins are considered intelligent because they can learn complex tricks, understand signals from trainers, communicate with each other using whistling and clicking sounds, and often show friendly, caring behavior toward humans in distress at sea.
« Previous: Chapter 4 Importance of Plants | DAV Class 3 Science All Chapters | Next: Chapter 6 Feeding Habits »