How do the joints help in movement ? Explain.

How do muscles help in movement of bones ?

The muscles and ......... fixed to joint help in movement of the body.

The hinge joint allows movement in

(a) How do sponges reproduce asexually ? (b) Which system helps them in nutrition , respiration and excretion ? (c ) How do sponges maintain their shapes ? Explain.

How do illusions help

Which of the following joints allow movement in many directions ?

Which of the following joints allow movement in many directions ?

Which of the following joints allow movement in all directions?