Mohan is fond of playing basketball. His concentration is on shooting the ball into the opponent’s basket as given in the picture.

(a) Which part of the brain helps Mohan to concentrate in putting the ball into the basket?

(b) Name the sense organ that helps to gauge the distance between the ball and the basket.

(c) Name the part of the brain that co-ordinates all the voluntary muscles of his body.

Name the type of nerve which has the fibres of both sensory and motor neurons.

"Birth rate in India is very high." Mention two reasons in support of the statement.

Give the exact location of:

(a) Pericardium

(b) Bicuspid valve