(a(i))[3]
Suggest the benefits to humans of conserving plant species.
(a(ii))[1]
In the wild, seeds can face conditions that are hostile to successful germination and growth. Suggest how the seeds should be kept in the seed bank so that they remain viable for future use.
(b(i))[2]
Describe the relationship between the number of plant genera and the mean annual rainfall in these seven countries.
(b(ii))[2]
Suggest what other climatic factors, apart from rainfall, affect plant biodiversity.