Class 5 Science Animals Habitat and Adaptations Olympiad Questions

Class 5 Science Olympiad questions on Animals: Habitat and Adaptations with answers and explanations. Covers habitats, breathing, feeding, movement, camouflage and migration.

 

1. A polar bear has thick fur and a layer of fat under its skin. What is the main purpose of both these adaptations?
A. To help it swim faster
B. To protect it from extreme cold
C. To help it catch prey
D. To make its body lighter

2. Which pair contains animals that can breathe through their moist skin?
A. Frog and earthworm
B. Fish and dolphin
C. Cockroach and whale
D. Snake and pigeon

3. A fish will find it difficult to survive on land mainly because:
A. its scales become too dry
B. its fins cannot move
C. its gills cannot obtain oxygen efficiently from air
D. it cannot see outside water

4. Which adaptation is correctly matched with its main function?
A. Camel – webbed feet for swimming
B. Chameleon – camouflage for protection
C. Fish – lungs for breathing underwater
D. Polar bear – thin fur for cooling

5. Study the statements:
I. Frogs can breathe through lungs.
II. Frogs can breathe through moist skin.
III. Tadpoles breathe through gills.

Which is correct?
A. Only I
B. I and II only
C. II and III only
D. I, II and III

6. An animal has a shell, lungs and four limbs. Which animal is it most likely to be?
A. Tortoise
B. Fish
C. Earthworm
D. Cockroach

7. Which feature would be LEAST useful to an animal living in a very cold polar region?
A. Thick fur
B. Thick layer of fat
C. Thin body covering with little insulation
D. Features that reduce heat loss

8. Which animal–breathing organ pair is INCORRECT?
A. Fish – gills
B. Grasshopper – spiracles
C. Dolphin – gills
D. Earthworm – skin

9. A scientist observes an animal that eats both fruits and small animals. Based on its feeding habit, it should be classified as a/an:
A. herbivore
B. carnivore
C. omnivore
D. amphibian

10. Which sequence correctly matches the animal with its main method of movement?
A. Horse–limbs, Fish–fins, Pigeon–wings, Snake–scales
B. Horse–fins, Fish–wings, Pigeon–limbs, Snake–shell
C. Horse–scales, Fish–limbs, Pigeon–fins, Snake–wings
D. Horse–wings, Fish–scales, Pigeon–shell, Snake–fins

11. Why are the hindlimbs of a horse important?
A. They absorb oxygen.
B. They help in movement and provide power.
C. They protect it from cold.
D. They help it camouflage.

12. Which animal is most likely to have sharp pointed canines and strong claws?
A. Cow
B. Deer
C. Tiger
D. Goat

13. A bird has hollow bones and wings but cannot fly because its body is heavy and its wings are weak. It is most likely a/an:
A. pigeon
B. ostrich
C. butterfly
D. eagle

14. A student groups cow, goat and deer together. What is the BEST reason?
A. All live in water.
B. All are herbivores with teeth suited for plant food.
C. All breathe through gills.
D. All migrate every winter.

15. Which statement best explains camouflage?
A. Animals change their habitat every season.
B. Animals blend with their surroundings to avoid being easily noticed.
C. Animals develop wings to escape enemies.
D. Animals store food inside their bodies.

16. If a chameleon could no longer change its colour to match its surroundings, which ability would be affected most directly?
A. Breathing
B. Protection through camouflage
C. Digestion
D. Reproduction

17. Which statement about aquatic movement is correct?
A. Ducks use webbed feet to push against water.
B. Fish use wings to swim.
C. Turtles use scales as paddles.
D. Dolphins use spiracles to move.

18. A frog is called an amphibian mainly because it:
A. eats both plants and animals
B. can live both on land and in water
C. has scales like a fish
D. migrates every year

19. Which animal would most likely have overlapping scales that help prevent the entry of water into its body?
A. Fish
B. Sheep
C. Pigeon
D. Earthworm

20. Consider the following:
I. Snakes crawl with the help of scales.
II. Birds fly using wings.
III. Fish swim using fins.
IV. Horses move using gills.

How many statements are correct?
A. One
B. Two
C. Three
D. Four

21. Arctic terns migrate mainly because migration helps them:
A. permanently change into aquatic animals
B. escape harsh conditions and find suitable food or breeding areas
C. develop thicker feathers
D. avoid breathing during winter

22. Which situation is the BEST example of an adaptation rather than migration?
A. A bird travelling to a warmer region during winter
B. A polar bear having thick fur to survive cold conditions
C. A crane flying to another country during winter
D. A butterfly travelling thousands of kilometres seasonally

23. Which animal is correctly matched with both its body covering and breathing organ?
A. Fish – scales – gills
B. Sheep – feathers – lungs
C. Bird – fur – spiracles
D. Cockroach – shell – gills

24. Why do flesh-eating birds such as vultures have strong, sharp and hooked beaks?
A. To grind grass
B. To tear flesh
C. To filter water
D. To breathe efficiently

25. If all insects suddenly lost their spiracles, which function would be affected first?
A. Breathing
B. Feeding
C. Reproduction
D. Camouflage

26. An unknown animal has moist skin, lives both on land and in water, and can breathe through its skin. Which animal is the BEST match?
A. Frog
B. Camel
C. Pigeon
D. Tiger

27. Which of the following shows the correct relationship?

Habitat → Animal → Useful adaptation

A. Desert → Camel → features suited to dry conditions
B. Ocean → Polar bear → feathers
C. Forest → Fish → webbed feet
D. Polar region → Camel → thin fur

28. A duck and a fish can both move efficiently through water, but they use different structures. Which comparison is correct?
A. Duck–webbed feet; Fish–fins
B. Duck–gills; Fish–wings
C. Duck–scales; Fish–webbed feet
D. Duck–spiracles; Fish–lungs

29. Read the Assertion and Reason.

Assertion (A): Dolphins must come to the water surface regularly.
Reason (R): Dolphins are mammals and breathe through lungs.

A. Both A and R are true, and R correctly explains A.
B. Both A and R are true, but R does not explain A.
C. A is true but R is false.
D. A is false but R is true.

30. An animal has the following characteristics:

• It lives in a cold region.
• Its body has a thick insulating covering.
• Its features help reduce heat loss.

Which conclusion is MOST reasonable?
A. These features are adaptations that help the animal survive its habitat.
B. These features make the animal an omnivore.
C. The animal must breathe through gills.
D. The animal must migrate every day.

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Answer Key with Explanations

Q.	Ans.	Explanation
1	B	Thick fur and body fat act as insulation and reduce heat loss in extremely cold environments.
2	A	Frogs can breathe through their moist skin, while earthworms breathe through their skin/body surface.
3	C	Fish gills are adapted to absorb dissolved oxygen from water and do not work efficiently for breathing in air.
4	B	A chameleon can blend with its surroundings, which helps it avoid detection. This is camouflage.
5	D	Adult frogs can use lungs and moist skin, while tadpoles breathe mainly through gills.
6	A	A tortoise has a hard protective shell, breathes through lungs and has four limbs.
7	C	An animal in a very cold region benefits from insulation. A thin covering would allow greater heat loss.
8	C	Dolphins are mammals. They breathe air using lungs, not gills, and therefore must surface to breathe.
9	C	Animals eating both plant and animal matter are called omnivores.
10	A	Horses use limbs, fish mainly use fins, birds use wings for flight, and snakes use their body and scales to crawl.
11	B	The hindlimbs provide strength and help land animals such as horses move, run and jump.
12	C	Tigers are carnivores. Sharp canines and claws help them catch prey and tear flesh.
13	B	Ostriches are flightless birds. Their heavy bodies and comparatively weak wings prevent flight.
14	B	Cows, goats and deer are herbivores and possess teeth adapted for cutting and grinding plant material.
15	B	Camouflage occurs when an animal’s body colouring helps it blend with its surroundings, making detection difficult.
16	B	Colour matching helps a chameleon camouflage itself. Losing this ability would mainly affect its protection from detection.
17	A	The webbed feet of ducks act like paddles and push water backwards, helping the duck move forward.
18	B	Amphibians such as frogs are adapted to live both on land and in water.
19	A	Fish have overlapping scales that protect their bodies and help prevent unwanted entry of water.
20	C	Statements I, II and III are correct. Horses move using limbs, not gills. Therefore, three statements are correct.
21	B	Migration allows animals to escape unsuitable seasonal conditions and find food or suitable breeding grounds.
22	B	Thick fur is a structural adaptation. The other options describe seasonal movement from one region to another, which is migration.
23	A	Fish generally have scales as their body covering and use gills to obtain dissolved oxygen from water.
24	B	Flesh-eating birds need strong, sharp, hooked beaks to tear flesh into pieces that can be eaten.
25	A	Spiracles are tiny openings used by insects for breathing. Losing them would directly interfere with respiration.
26	A	Frogs have moist skin, can live on land and in water, and can exchange gases through their skin.
27	A	Camels possess adaptations that help them survive the hot, dry and water-scarce conditions of deserts.
28	A	Ducks mainly use their webbed feet for swimming, whereas fish use fins to control and propel their movement.
29	A	Both statements are true. Because dolphins breathe with lungs, they must reach the surface to take in atmospheric oxygen.
30	A	Adaptations are body features, functions or behaviours that improve an organism’s ability to survive in its particular habitat.