(a)[2]
Fig. 5.1 shows a cross section through the leaf of a herbaceous dicotyledonous mesophyte. Complete Fig. 5.1 by naming structure A and tissue layer B.
(b)[3]
In xerophytes, some of the structural features shown in Fig. 5.1 are altered as adaptations that help them survive water-stress conditions. Complete Table 5.1 to show how the listed structural feature could be modified in a xerophyte leaf. Each feature should be given a different example of modification.