(a(i))[3]
State what transpiration means.
(a(ii))[3]
One adaptation of $A.\ arenaria$ is the curled leaf. Give one other adaptation visible in Fig. 4.1, and explain how this decreases transpiration.
(b(i))[2]
Use Fig. 4.2 to work out the difference between the rates of transpiration and water absorption for species P at time 1400.
(b(ii))[4]
Describe and explain the patterns of transpiration and water absorption for species P.
(b(iii))[2]
Suggest why the transpiration pattern of species Q is different from that of species P.