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CBSE Questions for Class 6 Biology Body Movements Quiz 3 - MCQExams.com
CBSE
Class 6 Biology
Body Movements
Quiz 3
Legs for movement are absent in which of the following animals?
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Dogs
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Crows
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Snakes
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Cows
Explanation
Snakes do not possess legs. They move by slithering that involves the entire body. Humans, birds and cows have legs.
Hence the correct option is C.
State whether the statement is true or false.
In earthworms, bones are absent and movement is with the help of muscles.
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0%
True
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False
Explanation
An earthworm does not have bones. It has
muscles which help to extend and
shorten the body. During movement,
the earthworm first extends the front
part of the body, keeping the rear
portion fixed to the ground. Then it fixes
the front end and releases the rear end.
It then shortens the body and pulls the
rear end forward. This makes it move
forward by a small distance.
Hence the given statement is true.
Snails have thick feet that help in movement.
Is the above statement true or false?
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0%
True
0%
False
Explanation
A thick structure and the head of the
snail may come out of an opening in the shell. The thick structure is its foot,
made of strong muscles which helps in movement.
Hence the given statement is true.
Bristles under the body help which of the following organisms in movement?
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Snake
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Fish
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Earthworm
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Birds
Explanation
Under the body, the earthworm has a large number of tiny bristles (hair-like structures) projecting out.
The bristles are connected with muscles. The bristles help to get a good grip on the ground which helps during movement.
Hence the correct option is C.
The modification of the outer skeleton into plates for movement is seen in
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Cockroach
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Earthworm
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Fish
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Snail
Explanation
Cockroaches walk and climb as well
as fly in the air. They have three pairs
of legs. These help in walking. The body
is covered with a hard outer skeleton.
This outer skeleton is made of number of plates joined together and that
permits movement.
There are two pairs of wings attached
to the body behind head.
Hence the correct option is A.
How do snakes move?
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They have legs
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They use the whole body to slither
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Both A and B
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None of these
Explanation
Snakes do not possess legs or arms. They move from one place to another through a slithering action that involves the whole body.
Hence the correct option is B.
State whether the given statement is true or false.
The shell of snails help in movement.
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True
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False
Explanation
The shell is the outer skeleton of the snail but is not made of bones. The shell is a single unit and does not help in moving from place to place. It has to be dragged along.
The function of the shell is to protect from predators and mechanical damage.
Hence the statement is false.
Earthworm moves due to the action of
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Bones
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Muscles
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Bones and muscles
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Cartilage
Explanation
The earthworm does not have bones.
It has muscles that help to extend and shorten the body.
During movement, the earthworm first extends the front part of the body, keeping the rear portion fixed to the ground.
Then it fixes the front end and releases the rear end. It then shortens the body and pulls the rear end forward.
This makes it move forward by a small distance.
Hence the correct option is B.
The bending of arm to touch the shoulder with the fingers is due to the action of _____.
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Shoulder
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Elbow
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Wrist
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Arm
Explanation
The bending action of the arm is due to the action of the elbow. It enables us to touch the shoulder with our fingers. Elbows are capable of bending the arm only in the upward direction.
Hence, the correct option is B.
In which animals does the streamlined body helps in the movement?
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Snakes
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Fish
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Cockroach
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Humans
Explanation
The head and tail of the fish are smaller than the middle portion of the body the body tapers at both ends. This body shape is called streamlined. The shape is such that water can flow around it easily and allow the fish to
move in the water.
Hence the correct option is B.
Hollow bones are characteristic features of
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0%
Fish
0%
Earthworm
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Cockroach
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Birds
Explanation
Birds fly in the air and walk on the
ground. Some birds like ducks and
swans also swim in water. The birds can
fly because their bodies are well suited
for flying. Their bones are hollow and
light.
Hence the correct option is D.
Which of the following features helps birds to fly?
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Hollow bones
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Modification of forelimbs into wings
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Strong shoulder bones
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All of these
Explanation
The birds can fly because their bodies are well suited for flying. Their bones are hollow and light. The bones of the hind limbs are typical for walking and perching. The bony parts of the forelimbs are modified as wings. The shoulder bones are strong. The breastbones are modified to hold muscles of flight which are used to move the wings up and down.
Hence, the correct option is D.
The movement of which of the following organisms improves the quality of the soil?
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Earthworms
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Snakes
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Snails
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Cockroach
Explanation
The earthworm eats its way through the soil. Its body then throws away the undigested part of the material that it eats. This activity of an earthworm makes the soil more useful for plants.
Hence the correct option is A.
The joint where our neck joins the head is called a ________.
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Hinge joint
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Pivotal joint
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Both A and B
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Gliding joint
Explanation
The joint where our neck joins the head is called a pivotal joint.
It allows us to bend our head forward and backwards and turn the head to our right or left.
Thus, Option B is correct.
A ______ is a point where two bones make contact and regulate movements in the body.
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Joint
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Bone
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Muscle
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Skeleton
Explanation
A
joint
is a point where two bones make contact and regulate movements in the body. There are different types of joints in our body to help us carry out different movements. For example: Hinge joint, Ball and socket joints and pivotal joint.
Thus, Option A is correct.
State whether the given statement is true or false.
Birds are capable of walking and flying but are not capable of swimming.
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True
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False
Explanation
Birds fly in the air and walk on the
ground. Some birds like ducks and
swans also swim in water.
Hence the given statement is false.
State whether the given statement is true or false.
Cockroaches are insects that are capable of both walking and flying.
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0%
True
0%
False
Explanation
Cockroaches walk and climb as well
as fly in the air. They have three pairs
of legs. These help in walking. There are two pairs of wings attached
to the body behind head. The
cockroaches have distinct muscles
those near the legs move the legs for
walking. The body muscles move the
wings when the cockroach flies.
Hence the given statement is true.
State whether the given statement is true or false.
A snake always moves fast and in a straight line.
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True
0%
False
Explanation
The snakes body curves into many
loops. Each loop of the snake gives it a
forward push by pressing against the
ground. Since its long body makes
many loops and each loop gives it this
push, the snake moves forward very fast
and not in a straight line.
Hence the given statement is false.
Which part/parts of a fish help in bringing about movement?
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Fins
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Tail
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Both A and B
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None of these
Explanation
The skeleton of the fish is covered with strong muscles.
During swimming, muscles make the front part of the body curve to one side and the tail part swings towards the opposite side. The fish forms a curve.
Then, quickly, the body and
tail curve to the other side.
This makes
a jerk and pushes the body forward. A
series of such jerks make the fish swim
ahead. This is helped by the fins of
the tail.
Hence the correct option is C.
Statement: The human skeleton comprises the skull, the back bone, ribs and the breast bone, shoulder and hipbones, and the bones of hands and legs.
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0%
True
0%
False
0%
Data insufficient
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Ambiguous
Explanation
The human skeleton comprises the skull, the back bone, ribs and the breast bone, shoulder and hipbones, and the bones of hands and legs. The statement is true. Thus, Option A is correct.
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