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. Different species of fungus can break down different molecules in wood. The effect of two species of fungus on the percentage loss in mass of wooden blocks was investigated. Species A was grown on one set of wood blocks and species B was grown on another set of wood blocks. The percentage loss in mass of the blocks was recorded every four weeks. The graph shows the results of the investigation. (i) Comment on the results of this investigation. (3) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ (ii) Suggest one reason for the difference in breakdown of the wood by species $$\(A\)$$ and species $$\(B\)$$. (1) ................................................................................................................................................................................................................................................................................

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