The World of Living Test

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The World of Living Test - 6

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Weekly Quiz Competition

Question 1
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You can use me in the preparation of your favourite vegetable or eat me raw as a part of salad. I am a herb. Identify me.

A
Tomato

B
Mango

C
Lemon

D
Deodar

Solution

The correct answer is tomato. It can be eaten raw or cooked with a vegetable.
Question 2
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Refer to the figure given below. To which category of plants does the vegetable shown belong?

A
Trees

B
Creepers

C
Climbers

D
Shrubs

Solution

The figure given is that of pumpkin. It is a creeper.
Question 3
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Read the following sentences about photosynthesis:

(i) Sunlight, carbon dioxide, chlorophyll, and water are necessary.
(ii) Oxygen is absorbed.
(iii) Leaves carry out photosynthesis.
(iv) Proteins are made during photosynthesis.

Choose the correct sentences.

A
(iii) and (iv)

B
(i) and (iii)

C
(ii) and (iv)

D
(i) and (iv)

Solution

Carbon dioxide is absorbed during photosynthesis and sugars are synthesised during this process.
Question 4
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Directions For Questions

...view full instructions

The above figure depicts characteristics of X. Choose the correct statement about X from the following:

A
X is the first part that emerges during germination.

B
X conducts water in the plants.

C
X are fibrous in mango.

D
X bears nodes and internodes.

Solution

X are roots and they anchor the plant, absorb water and store food in plants, like radish. Root is the first part that emerges during germination.
Question 5
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Directions For Questions

...view full instructions

Refer to the above diagram and choose the option which is incorrectly matched:

A
A: Do not bear nodes and internodes

B
B: Contains chlorophyll

C
C: Synthesises food

D
D: Helps to keep the leaf in an upright position

Solution

A is petiole. Petiole do not bear nodes and internodes.
B is leaf blade. Leaf blade contains chlorophyll which captures sunlight
C represents veins. The veins in a leaf transport water and nutrients to and from the leaf and provide structural support.
D is midrib. Midrib helps to keep the leaf in an upright position and to keep the leaf strong with protection from the wind
Question 6
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Refer to the diagram given below:

Which of the following statements hold true for the root system shown in the figure above?

(a) A represents tap root system and B represents fibrous root system.
(b) B represents tap root system and A represents fibrous root system.
(c) In A, the branches arising from the main root are called lateral roots.
(d) The rooting pattern shown in B is shown by dicots.

A
(a) and (b) only

B
(b) and (d) only

C
(b) and (c) only

D
(a) and (c) only

Solution

A represents tap root system and B represents fibrous root system. The branches arising from the main root of the tap root are called lateral roots.
Question 7
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Savita visited a biology lab and saw some animal specimens. She was told a characteristic of each organism. The characteristics were as follows:

a. It has hollow bones.
b. It has body just like the shape of boat.
c. It can walk, fly and climb.
d. Tiny bristles are present on the underside of its body.

Identify the organisms correctly.

A
a. Bird, b. Earthworm, c. Cockroach, d. Fish

B
a. Fish, b. Bird, c. Cockroach, d. Earthworm

C
a. Bird, b. Fish, c. Cockroach, d. Earthworm

D
a. Cockroach, b. Fish, c. Birds, d. Earthworm

Solution

Birds have hollow bones.
Fishes have streamlined body.
Cockroaches can walk, fly and climb.
Earthworm has tiny bristles on the underside of its body.
Question 8
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Consider the following sentences:

Sentence A: Backbone is made up of many small bones.
Sentence B: The bones of backbone are joined to each other by immovable joints.

With regard to these sentences, which of the following options is correct?

A
Both sentences A and B are correct.

B
Both sentences A and B are incorrect.

C
Sentence A is correct, but sentence B is incorrect.

D
Sentence A is incorrect, but sentence B is correct.

Solution

Sentence A is correct, but sentence B is incorrect. Backbone is made up of many tiny bones called vertebrae. Immovable joints do not exist between them as they are flexible.
Question 9
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Refer to the figure shown below.

This type of movement is known as

A
creeping

B
slithering

C
walking

D
running

Solution

The picture depicts movement of a snake which is called slithering movement.
Question 10
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The aquatic animal whose skeleton is entirely made of cartilage is

A
whale

B
dolphin

C
shark

D
sea horse

Solution

The skeleton of shark is entirely made up of cartilage. It does not have any bone.
Question 11
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Select the correct statement regarding the structure shown above.

A
These are the bones, that enclose the organs of our body that lie below the abdomen.

B
These are the bones, that give protection to the brain.

C
These are the bones, that protect our lungs.

D
These are the bones, that form the shoulder blade.

Solution

The figure shows the pelvic bones. Pelvic bones enclose the portion of the body below the stomach or below the abdomen.
Question 12
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Refer to the figures given below. These represent different kinds of joints present in the body.

Identify the correct statement from the given ones below.

A
P type of joint is found in the hip and allows circular movement.

B
Q type of joint is found in the human skull.

C
R type of joint allows sliding movement and is found in the wrist.

D
S type of joint allows the head to rotate.

Solution

P, Q, R and S represent the ball and socket joint, hinge joint, pivot joint and gliding joint respectively. Ball and socket joint is found in the hip and allows circular movement.
Question 13
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Few characteristics of an organism are given below:

a. Secretes the slime layer
b. Does not have endoskeleton
c. Has CaCO₃ in the protective structure

Which organism is described above?

A
Cockroach

B
Earthworm

C
Snail

D
Fish

Solution

The organism described is snail. Snail secretes slime layer which eases its movement. It does not have an endoskeleton and it has calcium carbonate in its exoskeleton.
Question 14
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Refer to the Venn diagram given below and choose the incorrect statement among the given options.

A
A represents terrestrial habitats.

B
The animals living in habitat C have very sharp eyesight, which helps them catch prey.

C
Plants of habitat D have big, broad leaves.

D
The trees inhabiting B are cone-shaped.

Solution

A represents all terrestrial habitats. These include forests (B), grasslands (C) and deserts ( D). The desert plants do not have big and broad leaves, instead they have very reduced leaves to minimise the loss of water.
Question 15
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Read the statements given below and answer accordingly.

Statement 1: Mountain goat has strong hooves.
Statement 2: Strong hooves help the mountain goat in running up the mountain's rocky slopes.

A
Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.

B
Both statements 1 and 2 are correct, but statement 2 is not the correct explanation of statement 1.

C
Statement 1 is correct, but statement 2 is incorrect.

D
Statements 1 and 2 both are incorrect.

Solution

Mountain goat has strong hooves which help it in running up the mountain's rocky slopes.
Question 16
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A lion has a special adaptive feature that helps it mimic the dry grasslands. Which of the following is that adaptive feature?

A
Long legs

B
Light brown colour

C
Front eyes

D
Strong body

Solution

Light brown colour of lion helps it to mimic the dry grasslands. This helps it to capture its prey more easily as the prey is unable to see the lion.
Question 17
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Ravina went to visit an animal museum where she saw a number of animals and plant specimens. She noted down the characteristics of them as below:

A: Strong claws and eyes in the front of the head
B: Long ears and eyes on the sides of the head
C: Long hair on the body

Identify these animals correctly.

A
A - Deer, B - Lion, C - Yak

B
A - Lion, B - Deer, C - Yak

C
A - Yak, B - Deer, C - Lion

D
A - Deer, B - Yak, C - Lion

Solution

Lion has strong claws that help it to prey. The eyes in front of the face allow it to have a correct idea about the location of its prey.
Deer has long ears to hear the movements of predators. The eyes on the side of its head allow it to look in all directions for danger.
Yak has long hair on the body to keep it warm.
Question 18
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Directions For Questions

...view full instructions

Directions: Refer to the flow chart given in the passage and choose the incorrect option.

A
A: Helps plant to retain water

B
B: Reduces transpiration

C
C: Provide firm support to plant

D
D: Synthesise food

Solution

Deep roots help the cactus plant to absorb water from depths as there is shortage of water in deserts.
Question 19
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Directions For Questions

...view full instructions

Directions: Refer to the above figure and choose the option true for A or B.

A
Step A is essential for continuation of species.

B
In step B, meiosis takes place.

C
Step A is exclusive to animals.

D
In step B, maturation do not occur.

Solution

Step A represents reproduction because a chicken comes out of an egg. This is essential for continuation of species.
Question 20
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Sourabh bought an aquatic plant from a nearby pond. On seeing the plant, his mother concluded that it is a totally submerged plant. How did she reach at that conclusion?

A
By seeing the stem of the plant.

B
By seeing the leaf of the plant.

C
By seeing root of the plant.

D
By seeing both root and stem of the plant.

Solution

Submerged plants have ribbon like or highly divided leaves through which the water can easily flow without damaging them, thus by seeing the leaves it could be concluded that it is a submerged plant.