3 - classification and biodiversity

Where a population is split and reproductively isolated, there are different selective pressures on the 2 groups. If genetic makeup changes to the extent the 2 groups can no longer interbreed to create fertile offsprings, they have become separate species.

speciation due to physical barrier (the environments have different selective pressures so different alleles are favoured).

speciation due to non-physical factor ie changes in anatomy, behaviour or a mutation which no lober allows 2 organisms to produce fertile offsprings.

the protection and management of species and habitats, in order to maintain biodiversity.

less space is needed so more different species can be held in the space available

large numbers of seeds are produced by plants so collecting seeds is unlikely to disturb/impact the local population

dormant so easier to store

more cost effective