Living Organisms & Their Surroundings Test

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Living Organisms & Their Surroundings Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Why are different kinds of plants found in different regions?

A
Due to varied climatic conditions

B
Due to varied soil temperature

C
Due to varied organisms

D
Due to varied biotic and abiotic factors

Solution

Different kinds of plants are found in different regions because survival of different plants in a particular area depends upon many factors like climate, soil texture and organisms found over there. All these factors are collectively divided into 2 major categories: the living factors as biotic and non-living ones as abiotic.
Question 2
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Which of the following regions are not a terrestrial habitat?

A
Deserts

B
Grasslands

C
Lakes

D
Forests

Solution

Habitat of animals and plants in different regions depends upon their body structure and its adaptability. Animals like yak, lions, ants, etc. live on ground and are known as terrestrial animals. Forests, grounds, grasslands, deserts are all included in terrestrial habitats, whereas ponds, lakes, rivers, seas, oceans are aquatic habitats.
Question 3
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Which adaptation in camels helps them to conserve water?

A
Thick layer of fur

B
No sweating

C
Thick layer of fat under the skin

D
Excreting large amount of urine

Solution

Camels are well adapted to the heat of a desert. Their bodies are adapted variably to fit well over there. Deserts have scarcity of water. So to conserve water, camels have long legs to stay away from the heat of the sun. They do not sweat much. They excrete less urine and almost dry dung. Thus, all these characteristics of camels help in conserving water.
Question 4
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Which of the following features of a deer does not help to escape predators?

A
Long ears

B
Strong teeth

C
Fast running ability

D
Side eyes

Solution

Deer is a plant-eating animal living in the grasslands. It has long ears to protect itself from its predators. For the same reason, it has legs well-suited to run fast. It has side eyes to see that its predator. Strong teeth cannot help the deer to escape predators.
Question 5
1 / -0

Sea animals like dolphins and whales breathe in air through

A
nostrils

B
lungs

C
skin

D
gills

Solution

Dolphins and whales breathe through nostrils, called a blowhole, located right on top of their heads. They breathe air into their lungs. They cannot breathe underwater like fish can as they do not have gills.
Question 6
1 / -0

Which of the following organisms are called decomposers?

A
Fungi

B
Tigers

C
Cats

D
Dogs

Solution

Fungi are called decomposers.
Question 7
1 / -0

Which of the following organisms are called chemo-autotrophs?

A
Plants

B
Nitrobacteria

C
Cows

D
Humans

Solution

Nitrobacteria are called chemo-autotrophs since they fix nitrogen to prepare their own food.
Question 8
1 / -0

Ajay saw a picture of a tree. The tree was cone-shaped with sloping branches. The leaves were needle-like. To which habitat does it belong?

A
Deserts

B
Mountains

C
Grasslands

D
Ponds

Solution

In mountains, the trees are cone-shaped with sloping branches and the leaves are needle-like.
Question 9
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Which among the following is not a characteristic of octopus?

A
They have streamlined body.

B
They have eight arms.

C
They catch the prey that moves towards them.

D
They have gills.

Solution

Octopuses stay deeper in the ocean. They have 8 arms and catch the prey that moves towards them. They have gills to help them breathe in water. They do not have streamlined body.
Question 10
1 / -0

Which among the following features help(s) a lion to hunt for its prey?
A. Its light-brown colour
B. Its eyes in front
C. Its claws in front legs

A
Only A

B
Only A and B

C
Only C

D
All of these

Solution

All the given features help a lion to hunt its prey.
Question 11
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What is the name for the certain habits which enable an organism to survive in its surroundings?

A
Adaptation

B
Special quality

C
Habitat

D
Nature

Solution

Adaptation enables an organism to survive in its surroundings.
Question 12
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_____ is/are the characteristic(s) of living organisms.

A
Respiration

B
Reproduction

C
Excretion

D
All of the above

Solution

Respiration, reproduction and excretion are characteristics of living organisms.
Question 13
1 / -0

Which of the following animals live in tropical grasslands?

A
Snow leopards

B
Deers

C
Lions

D
Both 2 and 3

Solution

Lions and deers live in tropical grasslands. Snow leopards live in very high altitude regions in the Himalayas.
Question 14
1 / -0

Growth in living things is

A
permanent and irreversible

B
temporary and irreversible

C
permanent and reversible

D
temporary and reversible

Solution

Growth in living things is permanent and irreversible.
Question 15
1 / -0

What is the main function of roots in aquatic plants?

A
To absorb nutrients from soil

B
To absorb water from soil

C
To hold plant in place

D
To transport mineral and water

Solution

Hydrilla is an aquatic plant. Function of roots is to fix the plant in the soil and to absorb water from the soil. Both these requirements get reduced in aquatic plants. So, hydrilla has got poorly-developed roots. Its function is to hold the plant in its place against the water currents.

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Re-Attempt Weekly Quiz Competition

Living Organisms & Their Surroundings Test - 2

Result

Living Organisms & Their Surroundings Test - 2

Score

-

Rank

-

SHARING IS CARING

Question 1

Due to varied climatic conditions

Due to varied soil temperature

Due to varied organisms

Due to varied biotic and abiotic factors

Solution

Question 2

Deserts

Grasslands

Lakes

Forests

Solution

Question 3

Thick layer of fur

No sweating

Thick layer of fat under the skin

Excreting large amount of urine

Solution

Question 4

Long ears

Strong teeth

Fast running ability

Side eyes

Solution

Question 5

nostrils

lungs

skin

gills

Solution

Question 6

Fungi

Tigers

Cats

Dogs

Solution

Question 7

Plants

Nitrobacteria

Cows

Humans

Solution

Question 8

Deserts

Mountains

Grasslands

Ponds

Solution

Question 9

They have streamlined body.

They have eight arms.

They catch the prey that moves towards them.

They have gills.

Solution

Question 10

Only A

Only A and B

Only C

All of these

Solution

Question 11

Adaptation

Special quality

Habitat

Nature

Solution

Question 12

Respiration

Reproduction

Excretion

All of the above

Solution