When you ride a bicycle two major joints of your leg should perform properly.
a) Name the joints.
b) To which type of synovial joints these belong ?

Give two examples for each of the following : a) Synovial joints b) Muscular proteins

A sharp tap is given at your knee cap with rubber hammer. You suddenly stretch your leg. a) Give name of this response. b) Which nerve centre is involved in this action ? c) Construct a flow chart of the pathway of impulses in this action.

When adsorption isobar is drawn for a paricular case, it was fount that,x/m initially increase with temperature,reaches maximum and then decreases gradually .a. Can you explain these observation? B.to which type of adsorption does this belong.

A man owns a field of area 1,000 sq.m. He wants to plant fruit trees in it. He has a sum of Rs. 1,400 to purchase young trees. He has the choice of two types of the tree. Type A requires 10 sq.m of ground per tree and cost. Rs. 20 per tree and type B requires 20 sq.m of ground per tree and cost Rs. 25 per tree. When fully grown, type A produces an average of 20 kg fruit Which can be sold at a profit of Rs. 2 per kg and type B produces. an average of 40 kg of fruit which can be sold at a profit.of Rs. 1.50 per kg. How many of each type should he plant to achieve maximum profit when the trees are fully grown? What is the maximum profit?

(## EXP_VAD_ZOO_XI_C09_E03_002_Q01 .png" width="80%"> a) Observe the diagram and identify the type of joint. b) Where can you find this type of joints in your body ? c) Comment on its ability to move.