The Living Organism and Their Surroundings NCERT Solutions

NCERT Solutions for Class 6 Science Chapter 9 The Living Organism and Their Surroundings are available below. The solutions are prepared by the top subject-matter experts at SimplyAcad to support students in solving the questions of the exercise prescribed to them in their NCERT textbook. Students must make sure to revise the chapter notes regularly and complete the entire exercise, this will boost confidence in them and help to score maximum marks.

NCERT Solutions for Class 6 The Living Organism and Their Surroundings

Question 1. What is a habitat?

Answer 1: A habitat is a place where an organism makes its home. Habitat provides an organism with all the environmental factors it needs to survive.

Question 2. Name various types of habitat.

Answer 2: Different types of habitat are:

(i) Terrestrial Habitat

(ii) Aerial or volant Habitat

(iii) Aquatic Habitat

iv)Amphibious

Question 3. Which of the following is not an example of a response to stimulus?

• Shutting our eyes when an object is suddenly thrown in our direction.
• Watering in the mouth when we see delicious food items.
• Closing of leaves of Mimosa plant when touched.
• A chick hatching out of an egg.

Answer 3: (d)

Question 4. Name two aquatic animals.

Answer 4:

(i) Fish

(ii) Turtle

Question 5. Which of the following is an incorrect statement about excretion?

(a) Excretion takes place in plants.

(b) Excretion takes place both in plants and animals.

(c) Excretion is the process of only getting rid of excess water.

(d) Secretion is one method of Excretion.

Answer 5: (c) Excretion is only the process of getting rid of excess water.

Explanation: Waste products like water, carbon dioxide, and nitrogenous substances are expelled through excretion. Waste products are created throughout the numerous biological processes within an organism’s body and are expelled from the body through urine, sweat, and exhaled air.

Question 6. Which of the things in the following items is non-living?

Plough, Sewing Machine, Mushroom, Radio, Boat, Water Hyacinth, Earthworm

Answer 6: The boat, sewing machine, radio, and plough are the only non-living items on the list. On the other hand, earthworms, mushrooms, and water hyacinths are all living things.

Question 7. Which of the following given below are characteristics of living beings?

(i) Respiration

(ii) Reproduction

(iii) Adaptation

(iv) Excretion

Choose the correct answer from the options below.

(a) (i), (ii) and (iv) only

(b) (i) and (ii) only

(c) (ii) and (iv) only

(d) (i), (ii), (iii) and (iv)

Answer 7: (d) (i), (ii), (iii) and (iv)

Explanation: All living things require respiration to survive. The body finally gets energy from the food it consumes through respiration. Through reproduction, living things create more of their kind. Living things adjust to their environment as it evolves. Only those creatures and plants that can adapt to changes survive, wiping out all others. During the processes of life, a living organism’s body creates waste. These wastes are eliminated, and the live organism’s method of doing so is known as Excretion.

Question 8. Name the types of components of habitat.

Answer 8: Components of habitat are:

(i) Biotic components

(ii) Abiotic components

Question 9. Choose the set that represents only the biotic components of a habitat.

(a) Tiger, Deer, Grass, Soil

(b) Rocks, Soil, Plants, Air

(c) Sand, Turtle, Crab, Rocks

(d) Aquatic plant, Fish, Frog, Insect

Answer 9: (d) Aquatic plant, Fish, Frog, Insect

Explanation: Aquatic plants, fish, frogs, and insects are living components or biotic components of the environment. Soil, rocks, air and sand are nonliving or abiotic components. So only set (d) has all the living or biotic components.

Question 10. List the common characteristics of living things.

Answer 10: Few common characteristics of living things are:

• They can grow and develop.
• They can reproduce.
• They obtain and use energy.
• They adapt to their environment.
• They move from one place to another.
• They respire and excrete waste material.
• They respond to their environment or stimuli.

Question 11. If you go to a desert, what changes do you expect to observe in the urine you excrete? You would

(i) excrete a small amount of urine

(ii) excrete a large amount of urine

(iii) excrete concentrated urine

(iv) excrete very dilute urine.

Which of the above would hold true?

(a) (i) and (iii)

(b) (ii) and (iv)

(c) (i) and (iv)

(d) (i) and (ii)

Answer 11: (a) (i) and (iii)

Explanation: The body can conserve water by excreting a tiny volume of concentrated urine. By excreting small amounts of water, people can survive in desert environments.

Question 12. List two examples of each biotic and abiotic component.

Answer 12:

• Biotic components: Animals, birds, plants.
• Abiotic components: Water, air, soil, sunlight.

Question 13. Even though a car moves, like many animals, it is not considered a living organism. Give 2-3 reasons.

Answer 13: A car is not considered a living organism because of the following reasons:

• The building blocks of all living things are cells. The smallest unit of a living thing is a cell. Cells do not make up a car.
• Living things can sense and react to their surroundings, including light, temperature, water, pollution, and other environmental stimuli. The car doesn’t react to inputs.
• Growth is a rise in an organism’s size. Growth is a permanent and irreversible process in living things. The growth of the car is not permanent and irreversible.

Question 14. What are predators?

Answer 14: An organism that consumes another organism is a predator. The organism that the predator consumes is known as the prey. Lion and zebra, bear and fish, and fox and rabbit are some examples of predator and prey.

Question 15. Following are some features of plants.

(i) Their leaves are always broad and flat.

(ii) They lose a lot of water through transpiration.

(iii) Their roots grow very deep into the soil.

(iv) They lose very little water through transpiration.

Which of the combination of the above features are typical of desert plants?

(a) (i) and (ii)

(b) (ii) and (iv)

(c) (ii) and (iii)

(d) (iii) and (iv)

Answer 15: (d) (iii) and (iv)

Explanation: Desert plants like cacti are used to the hot, dry environment of the desert. These plants have roots far into the ground to absorb water, and their leaves are either very thin or reduced to spines to minimise water loss through transpiration.

Question 16. Fill in the blanks:

(a) The habitats of plants and animals that live on land are called _________ habitat.

(b) The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called _________

(c) Soil, water, and air are _________ factors of a habitat.

(d) Changes in our surroundings that make us respond to them are called _________.

(e) The habitats of plants and animals that live in water are called _________ habitat.

Answer 16:

1. terrestrial
2. adaptation
3. abiotic
4. stimuli
5. aquatic

Question 17. What is respiration?

Answer 17: Respiration is the process through which oxygen is used by living things to convert food into energy, water, and carbon dioxide.

Question 18. Look over the features of plants given below.

(a) Short roots

(b) Thick waxy stem

(c) Sloping branches

(d) Cone-shaped plants

(e) Hollow stem

(f) Small or spine-like leaves

Choose the plant type for every feature given in a, b, c, d, e and f from the following list below. Aquatic plant, Desert plant, Mountainous plant

Answer 18:

(a) Aquatic plant

(b) Desert plant

(c) Mountainous plant

(d) Mountainous plant

(e) Aquatic plant

(f) Desert plant

Question 19. State an example of a non-living thing that shows two characteristics of living things.

Answer 19: Cloud is an example of a non-living thing that shows two characteristics of living things.

• Clouds move from one place to another.
• Clouds can grow.

Question 20. What is Excretion?

Answer 20: Excretion is the process by which living things get rid of their waste.