Body Movements ...

Locomotion is helpful to animals in a number of ways. Which of the following is/are the reason(s) due to which locomotion is needed by animals?

Which of the following help(s) in the locomotory movements in all vertebrates including humans?

a. Bones
b. Muscles
c. Skin

Some joints do not allow any movement and are called immovable joints. Which of the following is not an example of immovable joints?

Synovial cavity is lined with a thin synovial membrane. This cavity is found in

Match the following:

Skeletal system consists of bones and cartilages. Bones are hard but are not present in the

The places where two or more bones meet are called joints. Which of the following kinds of joints are not found in the human body?

Consider the following statements and mark the answer accordingly:

Statement a: In sharks, the skeleton is made entirely of bones. 
Statement b: In insects, a firm jointed exoskeleton, which encloses the body, is present. 

Consider the following statements and mark the answer accordingly:

Statement a: A resting muscle is short and fat, and when it contracts, it becomes long and thin.
Statement b: Muscles possess the property of contraction and relaxation. 

Birds are adapted to fly in the air and walk on the ground. Which of the following properties of birds is/are true?

Voluntary, involuntary and cardiac are the three types of muscles. These types of muscles are attached to bones with the help of

In which of the following joints does the rounded head of one bone fit into a cup-shaped cavity formed by the other bone?

Bones of skull, ribs, vertebral column, and limbs are the parts of the skeletal system. Which of the following is/are the function(s) of the skeletal system?

In organisms with liquid skeleton, the fluid inside the body forms an incompressible skeleton around which muscles act and bring about movement. Which of the following organisms has liquid skeleton?

Consider the following statements and mark the answer accordingly:

Statement a: The bones are held together at a joint by a tough structure called ligament.
Statement b: There are 24 joints in our body to allow movement to take place.