In what form is water lost during transpiration and guttation from plants?

Ayush was in the final round of a carrom match. He was focussing intently on the strokes of the opponent player.

(a) Which part of the brain helps Ayush to focus on the game?

(b) Name the part of the brain that co-ordinates his muscles while using the striker.

Draw a neat, labelled diagram of a cross section of an Artery and a Vein.

What is Excretion?