__and __ pairs of ribs are called floating ribs.

Read the following statements (i) first seven pairs of ribs are called true ribs or vertebrochondral ribs. (ii) A rib has two articulation surfaces on its dorsal end and is hence called bicephalic. (iii) Pelvic girdle consists of two coxal bones (iv) Xiphoid process forms the lowermost and manubrium forms the uppermost part of the sternum. Which of these are correct?

Ribs are attached to

The floating fern are

Which of the following ribs are not connected ventrally with the sternum and are called as floating ribs ?

Give example of floating fern.

There are 11 pairs of ribs in man

Free floating microscopic plants are called zooplanktons.

Write True or False : The muscle between our ribs are called inter coastal muscle.

A pair of contrasting character is called-

Salvinia is floating fern.