Body movements

Which of the following are the characteristics of the birds?

• Forelimbs modified as wings

• Hollow bones

• Strong muscles

• All the above

Muscular foot is a locomotary organ in

• Snakes

• Cockroach

• Earthworms

• Snails

The forward and backward movement of our head is possible because of presence of

• ball and socket joint where our neck joins the head

• pivotal joint where our neck joins the head

• hinge joint where our neck joins the head

• None of these

The only movable bone in the skull is

• the upper jaw bone

• femur

• humerus

• mandible

Which of the following joints is immovable?

• Lower jaw and Upper jaw

• Upper jaw and Skull

• Knee and Hip joint

• Wrist and Pivotal joint

Hinge joint can allow movement upto

• 360 degree

• 90 degree

• 45 degree

• 180 degree

How many pairs of ribs do a human body have?

• 20 pairs

• 12 pairs

• 6 pairs

• 24 pairs

Earthworm body secretes a______________substance to help the movement.

• Rough

• Slimy

• Enzymes

• Blood

One of the following does not have a hinge joint

• 1.  jaw 
•  elbow
• Knee
• shoulder

Which of the following are ball and socket joints?---
A) elbow joint
B)shoulder joint
C) Knee joint
D)Hip joint

•  a) A and B  
• b) B and C
• c) A and C
• d) B and D