BIOLOGY WORKSHEET - Adaptation - READABLE Worksheet
🌿 Adaptation & Habitat: Interactive Worksheet
Part 1: Multiple Choice Questions (MCQs)
Read each question and choose the best answer.
1. The natural home or immediate surroundings of an organism is called its:
(a) Adaptation
(b) Habitat
(c) Environment
(d) Niche
2. Which of these is NOT an example of a habitat?
(a) A forest
(b) A classroom
(c) A freshwater pond
(d) A desert
3. Plants found in dry and hot climates with scarcity of water are called:
(a) Hydrophytes
(b) Mesophytes
(c) Xerophytes
(d) Aerophytes
4. Hydrilla is an example of a:
(a) Floating plant
(b) Submerged plant
(c) Desert plant
(d) Aerial plant
5. Why do aquatic plants like water lily have a waxy coating on their leaves?
(a) To attract insects
(b) To prevent rotting and decay in water
(c) To help the plant breathe
(d) To store food
6. Which feature helps a fish maintain buoyancy (stay afloat) in water?
(a) Gills
(b) Streamlined body
(c) Swim bladder
(d) Scales
7. Camel's feet have thick large soles to help it:
(a) Run fast after prey
(b) Walk on hot and loose sand
(c) Swim in desert oases
(d) Climb rocky mountains
8. Trees like Pine and Fir are cone-shaped with sloping branches to:
(a) Catch more sunlight
(b) Let rain and snow slide off easily
(c) Protect from wild animals
(d) Save water from roots
9. The respiratory organs in fish that allow them to use dissolved oxygen from water are:
(a) Lungs
(b) Moist skin
(c) Gills
(d) Air sacs
10. Birds have hollow bones (pneumatic bones) primarily to:
(a) Store extra food
(b) Make the body light for flight
(c) Protect them from cold
(d) Help them sing better
Part 2: Fill in the Blanks
Type or think of the correct term.
The presence of special features which enable an organism to live in a particular habitat is called __________.
Animals that can live both on land and in water are called __________.
In a cactus, leaves are reduced to __________ to prevent water loss.
A __________ body shape helps aquatic and aerial animals reduce friction/resistance.
Mangroves have special roots called __________ that grow upwards to absorb oxygen from the air.
Part 3: True or False
[T / F] Submerged plants like Hydrilla have very large, broad leaves.
[T / F] Mountain goats have flexible hooves to help them jump from rock to rock.
[T / F] A camel can live without food or water for several days by using fat stored in its hump.
[T / F] All aquatic plants have roots that reach the soil at the bottom of the water body.
[T / F] The forelimbs of birds are modified into wings.
Part 4: Match the Following
| Column A | Column B |
| 21. Xerophyte | (a) Webbed feet |
| 22. Arboreal | (b) Cactus |
| 23. Frog | (c) Lives on trees (e.g., Monkeys) |
| 24. Snow Leopard | (d) Thick fur and fat layer |
| 25. Penguin | (e) Flippers for swimming |
Part 5: Case Study & Logical Reasoning
26. If you moved a cactus from the desert to a very rainy tropical forest, why might it die?
(a) It would get too much sunlight.
(b) Its roots would rot because they aren't adapted to constant wet soil.
(c) It would grow too many leaves.
(d) Desert animals would follow it.
27. Identify the odd one out: Polar Bear, Penguin, Camel, Yak.
Answer: __________ because it lives in a __________ habitat, while the others live in cold regions.
28. Why are the stems of floating plants like Lotus long, hollow, and light?
(a) To store water for dry days.
(b) To keep the flowers and leaves floating on the surface.
(c) To hide from fish.
(d) To absorb minerals from the air.
29. Which of these is a BEHAVIORAL adaptation (rather than physical)?
(a) The hump of a camel.
(b) The migration of birds to warmer places in winter.
(c) The streamlined body of a fish.
(d) The spines on a cactus.
30. Why do aerial plants like Orchids have roots hanging in the air?
(a) To catch insects.
(b) To absorb moisture and air from the atmosphere.
(c) To look beautiful.
(d) Because they don't like soil.
Answer (For self-checking)
Part 1: Multiple Choice Questions (MCQs)
The natural home or immediate surroundings of an organism is called its: (b) Habitat
Which of these is NOT an example of a habitat? (b) A classroom
Plants found in dry and hot climates with scarcity of water are called: (c) Xerophytes
Hydrilla is an example of a: (b) Submerged plant
Why do aquatic plants like water lily have a waxy coating on their leaves? (b) To prevent rotting and decay in water
Which feature helps a fish maintain buoyancy (stay afloat) in water? (c) Swim bladder
Camel's feet have thick large soles to help it: (b) Walk on hot and loose sand
Trees like Pine and Fir are cone-shaped with sloping branches to: (b) Let rain and snow slide off easily
The respiratory organs in fish that allow them to use dissolved oxygen from water are: (c) Gills
Birds have hollow bones (pneumatic bones) primarily to: (b) Make the body light for flight
Part 2: Fill in the Blanks
The presence of special features which enable an organism to live in a particular habitat is called Adaptation.
Animals that can live both on land and in water are called Amphibians.
In a cactus, leaves are reduced to Spines to prevent water loss.
A Streamlined body shape helps aquatic and aerial animals reduce friction/resistance.
Mangroves have special roots called Pneumatophores that grow upwards to absorb oxygen from the air.
Part 3: True or False
[False] Submerged plants like Hydrilla have very large, broad leaves. (Note: They have small, narrow leaves to resist water currents).
[True] Mountain goats have flexible hooves to help them jump from rock to rock.
[True] A camel can live without food or water for several days by using fat stored in its hump.
[False] All aquatic plants have roots that reach the soil at the bottom of the water body. (Note: Floating plants do not).
[True] The forelimbs of birds are modified into wings.
Part 4: Match the Following
Xerophyte — (b) Cactus
Arboreal — (c) Lives on trees (e.g., Monkeys)
Frog — (a) Webbed feet
Snow Leopard — (d) Thick fur and fat layer
Penguin — (e) Flippers for swimming
Part 5: Case Study & Logical Reasoning
If you moved a cactus from the desert to a very rainy tropical forest, why might it die? (b) Its roots would rot because they aren't adapted to constant wet soil.
Identify the odd one out: Polar Bear, Penguin, Camel, Yak. Answer: Camel because it lives in a Desert habitat, while the others live in cold regions.
Why are the stems of floating plants like Lotus long, hollow, and light? (b) To keep the flowers and leaves floating on the surface.
Which of these is a BEHAVIORAL adaptation (rather than physical)? (b) The migration of birds to warmer places in winter.
Why do aerial plants like Orchids have roots hanging in the air? (b) To absorb moisture and air from the atmosphere.
1-b, 2-b, 3-c, 4-b, 5-b, 6-c, 7-b, 8-b, 9-c, 10-b, 11-Adaptation, 12-Amphibians, 13-Spines, 14-Streamlined, 15-Pneumatophores, 16-F, 17-T, 18-T, 19-F (Floating plants don't), 20-T, 21-b, 22-c, 23-a, 24-d, 25-e, 26-b, 27-Camel (desert), 28-b, 29-b, 30-b.
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