Living Organisms and Their Surroundings – MCQs Class 6
Living Organisms and Their Surroundings – MCQs Class 6
Class: 6 | Subject: Science | Section: Living Organisms & Habitat | Topic: Living Organisms and Their Surroundings | CBSE Board Examination
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 6 Science examination standard. Each question includes a detailed explanation for concept clarity.
1. Which of the following is a living organism?
Answer: b) Tree
Trees show characteristics of life such as growth, respiration, reproduction, and response to stimuli. Non‑living things like rocks, water, and air do not exhibit life processes.
Trees show characteristics of life such as growth, respiration, reproduction, and response to stimuli. Non‑living things like rocks, water, and air do not exhibit life processes.
2. The place where an organism lives is called its:
Answer: b) Habitat
Habitat refers to the natural surroundings where an organism lives and obtains food, water, shelter, and suitable conditions for survival.
Habitat refers to the natural surroundings where an organism lives and obtains food, water, shelter, and suitable conditions for survival.
3. Which habitat has saline water?
Answer: c) Ocean
Oceans contain salty (saline) water. Organisms living there are adapted to high salt concentration.
Oceans contain salty (saline) water. Organisms living there are adapted to high salt concentration.
4. Camels are adapted to live in:
Answer: b) Desert
Camels have long legs, humps for fat storage, and can conserve water—adaptations that help them survive in hot desert habitats.
Camels have long legs, humps for fat storage, and can conserve water—adaptations that help them survive in hot desert habitats.
5. Which process helps plants make food?
Answer: b) Photosynthesis
Photosynthesis is the process by which green plants prepare food using sunlight, carbon dioxide, water, and chlorophyll.
Photosynthesis is the process by which green plants prepare food using sunlight, carbon dioxide, water, and chlorophyll.
6. Fish breathe through:
Answer: c) Gills
Gills help fish absorb dissolved oxygen from water, enabling respiration in aquatic habitats.
Gills help fish absorb dissolved oxygen from water, enabling respiration in aquatic habitats.
7. Which of the following is a terrestrial habitat?
Answer: c) Forest
Terrestrial habitats are land‑based. Forests, deserts, and mountains are examples.
Terrestrial habitats are land‑based. Forests, deserts, and mountains are examples.
8. Which characteristic is common to all living organisms?
Answer: b) They grow
Growth is a universal feature of living organisms, though movement like flying or swimming is not common to all.
Growth is a universal feature of living organisms, though movement like flying or swimming is not common to all.
9. Cactus is adapted to:
Answer: a) Store water
Cactus has thick fleshy stems that store water, helping it survive in deserts.
Cactus has thick fleshy stems that store water, helping it survive in deserts.
10. Which organism lives in polar regions?
Answer: b) Penguin
Penguins have thick skin and fat layers to survive extreme cold climates.
Penguins have thick skin and fat layers to survive extreme cold climates.
11. Stimulus refers to:
Answer: c)
Any change in environment that causes response is a stimulus.
Any change in environment that causes response is a stimulus.
12. Frogs live in:
Answer: b)
Frogs are amphibians living both on land and in water.
Frogs are amphibians living both on land and in water.
13. Which is non‑living?
Answer: c)
Chair shows no life processes.
Chair shows no life processes.
14. Adaptation means:
Answer: b)
Adaptations help organisms survive in their environment.
Adaptations help organisms survive in their environment.
15. Which plant lives in water?
Answer: a)
Lotus is an aquatic plant.
Lotus is an aquatic plant.
16. Movement of sunflower towards sun is:
Answer: c)
It responds to light stimulus (phototropism).
It responds to light stimulus (phototropism).
17. Aquatic animals use dissolved:
Answer: b)
Dissolved oxygen is used for breathing.
Dissolved oxygen is used for breathing.
18. Which shows growth?
Answer: b)
Growth is a living characteristic.
Growth is a living characteristic.
19. Desert plants have:
Answer: b)
Spines reduce water loss.
Spines reduce water loss.
20. Living organisms need food for:
Answer: b)
Food provides energy for all life processes.
Food provides energy for all life processes.