3 – DIVERSITY IN LIVING THING AND
THEIR CLASSIFICATION
Q. 1. Write whether the following
statements are True or False?
Ans. (1) The snail is an aquatic animal. False
(2)
Amphibians can live in air and in water. False
(3)
The function of the brain is well developed in vertebrate animals. True
(4)
The amoeba is a multicellular animal. False
Q. 2. Who is the odd one out?
(1)
Fungus, mushroom, chrysanthemum, spirogyra
(2)
Mango, banyan, palm, chick pea
(3)
Grape, orange, lemon, hibiscus
(4) Sunflower, banyan, jowar, bajra
(5)
Guava, radish, carrot, beetroot
(6)
Deer, fish, man, worms.
Ans. (1) Chrysanthemum (Chrysanthemum is a flowering plant,
others are not.)
(2)
Palm (Palm grows straight without branches, others have branches.)
(3)
Hibiscus (Hibiscus is flower, others are fruits.)
(4)
Banyan (Banyan is a perennial plant, others are not.)
(5)
Guava(Guava is a fruit, others are roots.)
(6)
Fish (others are terrestrial animals.) Worms (others are vertebrate animals.)
Q. 3.
Write to names each: Note: Answers are given direct
1) A
flowering plant Mango. Hibiscus
2) A non-flowering plant : Algea. Ferns.
3) A
tree : Teak und Neem
4) A
shrub: Oleander. Lantana
(5) A
creeper : Pumpkin Cucumber
(6) An
annual plant : Mango Jackfruit
Q. 4.
Match the pairs :
Ans
Group 1 Group
B
(1)Amphibian
-
A frog
(2)
Vertebrate - A
monkey
(3)
With scales - A
snake
Q. 5. What is the difference?
(1)
Flowering plants and Non-flowering plants :
Ans
Flowering plants Non-flowering plants
1)
Flowering plants bear flowers. (1) Non-flowering plants do not bear flowers
2)
Flowering plants have roots. Stem, (2)
Non-flowering plants may not have leaves,
etc
roots, stem, leaves, etc.
3)
Flowering plants bear fruits with 3) Non-flowering plants do not bear fruits
seeds.
with seeds
4) Flowering plants are more evolved. 4) Non-flowering plants are not much
evolved.
(2) A tree and A shrub
Ans. A tree
A shrub
1)
A tree grows tall. 1) A shrub does not grow tall.
2)
A tree is large in size. 2) A shrub is small in size.
3)
Trees are perennial. (3)
Shrubs are annual or biennial.
4)
Trees
give out branches at some (4) Shrubs give out branches very close height.
e., Mango, Jackfruit. Neem to
the ground level. e.g. Oleander,
Lantana
(3) Vertebrates and invertebrates
Ans Vertebrates
Invertebrates
1)
Vertebrates
have a vertebral column 1)
Invertebrates do not have a vertebral
In their body.
column in their body
2)
Vertebrates
have well-formed organs. 2)
Invertebrates do not have well
Formed organs.
3)
Vertebrates
are evolved animals. e.g. 3)
Invertebrates are primitive animals.
Fish, Snake, Birds, Frog, Man e.g. amoeba, Snail, Insects,
Earthworm
Q. 6. Write answer to the following:
1)
What
are the parts of the plant?
Ans. Roots stem leaves Mowers and fruits are
the parts of plant.
2) What are the functions of the root?
Ans.
Functions of the roots (1) Roots hold the soil firmly (2) Absorption of the water
and nutrients from the soil is done by roots. (3) Roots transport the absorbed water and
nutrients
to the stem (4) Some modified roots store food in them e.g. Carrot and radish
(4) Roots support the plant.
(3)
Why is it necessary to classify living things?
Ans. 1)There
is a vast diversity among the living things present on the earth 2) For identifying
these living things and also for studying the characteristics of them we need
to classily them properly in a scientific way.
(4)
What are the criteria used to classify living things?
Ans.
While classifying living things we have to take into consideration the
following criteria:
1)
Structure
of the living things (2) Different organs present (3) Similarities and
differences between them (4) Other characteristics. (5) Habitat.
(5)
Tell some characteristics of creepers
Ans.
The creepers have very flexible and green stem. It is soft and thus cannot give
support to the plant on its own. The creepers therefore take the support of the
nearby objects. Creepers have aerial roots, (e.g. Money plants) or spring like
tendrils ( e.g. Cucumber) for such support. Some creepers spread horizontally
on the ground.
(6)
Explain the characteristics of herbs with two examples.
Ans.
Herbs are short plants growing to the height of about 1 to 1.5 metres. The
stems of the herbs are flexible and green. They are short lives. They survive
for a few months or year or two Examples of herbs are Fenugreek and Periwinkle
(7) On
the basis of which criteria will you classify plants and animals?
Ans. I. Criteria for classifying Plants :
Plants are classified according to the following basis:
(1) Height (2) Shape of stems (3) Period
of lifecycle (4) Whether they produce flowers or they are non-flowering 5)
Habitat
II. Criteria for classifying Animals: Animals are classified according to
the following basis
1)
Cell
structure (2) Vertebral column (31 Method of reproduction (4) Habitat
(8) How is the body of animals protected?
Ans.
Some animals have protective covering on their body. Some animals have of
scales. Some like turtles and tortoises have plates. Some animals show behavior
that protects them. Some are provided with horns. nails or sharp teeth for pro
themselves against their predators.
Q 7. Draw figure
Ans.
Draw the figure of a plant to show the parts, namely the root, stem and leaves
in it.
