Which one of the following organisms lack muscles and skeleton for movement?

(a)

Dog

(b)

Snail

(c)

Earth worm

(d)

Human being

__________ joints are immovable.

(a)

Shoulder and arm

(b)

Knee and joint

(c)

Upper jaw and skull

(d)

Lower jaw and upper jaw

Why do underwater divers wear fin-like flippers on their feet ?

(a)

To swim easily in water

(b)

To look like a fish.

(c)

To walk on water surface

(d)

To walk over the bottom of the sea (sea bed).

External ear (pinna )is supported by

(a)

bone

(b)

cartilage

(c)

tendon

(d)

capsule

Cockroach moves with the help of its

(a)

leg

(b)

bone

(c)

muscular foot

(d)

whole body

Movement of organisms from place to place is called __________.

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locomotion

__________ refers to change in position of the part of an organisms body.

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Movement

A structure which provides rigid frame work to the body is called __________

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skeleton

The place where two bones meet is termed as __________.

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joint

_____ muscle makes pupil of eyes wider.

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Radial

Skull in humans consists of 22 bones

(a) True

(b) False

There are 12 pairs of ribs in human body.

(a) True

(b) False

Pelvic girdle is a part of axial skeleton.

(a) True

(b) False

Hinge joint is slightly movable joint.

(a) True

(b) False

Cardiac muscle is a voluntary muscle.

(a) True

(b) False

The flexor and extensor muscle of the arm are antagonistic muscles.

(a) True

(b) False

What is skeleton?

What is cranium?

Differentiate axial and appendicular skeleton.

Define Muscle

What are antagonistic muscles? Give one example.

What are the functions of skeleton in human body?

Name the different types of joints? Give one example for each type.

Discuss various types of movements seen in living organisms.