Fill in the blanks :
___________connects the cavity of the middle ear with the pharynx.
Answer the following
Name the skeletal joint which permits movement in one direction only.Hinge joint
Mention one significant difference between each of the following:
Heartwood and sapwood
Mention one significant difference between each of the following:
Active absorption and Passive absorptionMention one significant difference between each of the following:
Mitral valve and Semilunar valve