Question

hey any bio expert plz ans this! #nospam

Answer 1

i)-it is a ganong's potometer
ii)-it is used to measure the rate of absorption which is almost equal to rate of transpiration
iii)-the twig may not survive for long period
and
the air bubble is difficult to introduce.
iv)-it is uses to record the marking along the capillary
v)-it is used to restore the position of air bubble.