(a)[3]
Describe what adaptation means.
(b)[4]
Describe two visible adaptive features shown in Fig. 6.1 and explain how each feature helps the plant live in a desert.
(c(i))[1]
Using the data in Table 6.1, estimate how many stomata there are in an ice plant leaf with a lower leaf surface area of $8\,\text{cm}^2$.
(c(ii))[2]
Explain the information shown in Table 6.1.
(d)[2]
Xerophytic forests are being threatened by human overexploitation. Suggest reasons why conserving xerophytic ecosystems is important.