The photograph shows a species of fungus growing on a dead tree in a woodland habitat. Wood contains a high proportion of lignin and cellulose. Fungi can break down molecules in wood by releasing extracellular enzymes. A study compared the biodiversity of two woodland habitats. The index of diversity for habitat one was 4.2. The table shows the data obtained from habitat two. (i) An index of diversity (D) is calculated using the formula: $$\[ \mathrm{D}=\frac{\mathrm{N}(\mathrm{~N}-1)}{\sum \mathrm{n}(\mathrm{n}-1)} \]$$ Calculate the index of diversity for habitat two. Use the table and the formula to help you. (3) Answer ......................................................................................... (ii) State which habitat has the higher biodiversity. Give a reason for your answer. (1) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ (iii) Species D is an endangered plant species. Explain the processes that could be used by a seed bank to conserve this plant species. 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