Class 6 Lesson 3 Diversity in Living Things and their Classification answers

Std 6  Chapter 3 Diversity in Living Things and their Classification answers


1. Match the pairs.

A Group B Group
(a) Amphibian (1) A Monkey
(b) Vertebrate (2) A Snake
(c) With scales (3) A Frog

Ans:       a – 3       b – 1      c – 2                       

2. Who is the odd one out?

(a) Fungus, mushroom, chrysanthemum, spirogyra

Ans. (a) Chrysanthemum is the odd one out as it is a flowering plant whereas all others are non flowering.

 (b) Mango, banyan, palm, chick pea

Ans. (b) Chick pea is the odd one out as it is a type of herb whereas all others are types of trees.

(c) Grape, orange, lemon, hibiscus

Ans. Grape is the odd one out as it is a climber whereas all others are shrubs.

(d) Sunflower, banyan, jowar, bajra

Ans. Banyan is the odd one out because it is a perennial plants whereas all others are annual plants.

(e) Guava, radish, carrot, beetroot

Ans. Guava is the odd one out because it is a perennial plant whereas all others are biennial plants.

(f) Deer, fish, man, worms

Ans.  Worm is the odd one out because it is an invertebrate whereas all others are vertebrates.

3. What is the difference?

(a) Flowering plants – non-flowering plants

Flowering Plants Non – flowering Plants
1. Plants that bear flowers are called flowering plants. 1. Plants that never bear flowers are called non-flowering plants.
2. Flowering plants may have organs like roots, stems, leaves , flowers and seeds. 2. Non-flowering plants may not have organs like roots, stems, leaves, flowers and seeds.
3. For example: rose and mango 3. For example: ferns and mosses

(b) A tree – a shrub

Tree Shrub
1. Some plants grow tall and have hard and strong stem or trunk are called trees 1. Some plants may grow up to two to three meters are called shrubs.
2. They have branches at some height above the ground. 2. They have branches very close to the ground.
3. For example: neem and banyan 3. For example: rose and hibiscus

(c) Vertebrates – invertebrates

Vertebrates Invertebrates
1. Animals with vertebral column vertebrates. 1. Animals without a vertebral column are called invertebrates.
3. For example: Snakes, birds, fish, kangaroos and humans 3. For example: snails, cockroaches and earthworms.

4. True or false?

(a) The snail is an aquatic animal. False                                                  

(b) Amphibians can live in air and in water.  False

(c) The function of the brain is well developed in vertebrate animals. True

(s) The amoeba is a multicellular animal. False

5. Write two names of each.

(a) A flowering plant

Ans. Rose, Jasmine

(b) A non-flowering plant

Ans.  Ferns, Mosses

(c) A tree

Ans. Banyan, tamarind

(d) A shrub

Ans. Hibiscus, rose

(e) A creeper

Ans. Pumpkin, money-plant

(f) An annual plant

Ans. Jowar, sunflower

(g) A biennial plant

Ans. Carrot, beetroot

(h) A perennial plant

Ans. Mango tree, gulmohar tree

6. Write answers to the following.

(a) What are the parts of a plant?

Ans. The parts of a plant are roots, stem, leaves, flowers and fruits.

(b) What are the functions of the root?

Ans. Functions of the roots are

(a) to supply the water and minerals from the soil to the stem

(b) to give support to the plant

(c) Why is it necessary to classify living things?

Ans. There is a great variety of plants and animals. In order to study them in a systematic manner it is necessary group them together on the basis of similarities and differences.

(d) What are the criteria used to classify living things?

Ans.  Plants are classified on the basis of their size and height of stems, period of life cycle, flowering or non flowering and habitat. Animals are classified on the basis of the cell structure, vertebral column, method of reproduction and habitat.

(e) Tell some characteristics of creepers.

Ans. The stem of a creeper is very flexible, soft and green. It grows rapidly with the help of a support.

(f) Explain the characteristics of herbs with two examples.

Ans. The characteristics of herbs are:

(i) Herbs grow 1 to 1.5 meters tall.

(ii) The stems of herbs are green and quite flexible.

(iii) Herbs may live for a few months or up to two years.

(iv) Examples of herbs are tulsi, coriander, mint, etc.

(g) On the basis of which criteria will you classify plants and animals?

Ans. Plants and animals can be classified on the basis of whether they produce their own food.

Most plants are autotrophs i.e. they produce their own food  and animals are consumers i.e. they do not produce their own food, but depend on plants or other animals for their food.

(h) What protects the bodies of animals?

Ans. The bodies of animals are protected by skin, fur, shells, scales and spines.

7. Draw figures.

Draw the figure of a plant to show the parts, namely, the root, stem and leaves in it.

(students should refer to the diagram given on page 19 of their text books.)

Activity :

  • Visit a plant nursery and classify the plants there. 
  • Visit a zoo and obtain information about the diversity in animals.
  • Write an essay on diversity in plants.
  • Collect seeds of various plants during summer and throw them in open spaces (fallow land, moorland, hill, etc.) during the rainy season.