[问答题]
Marram grass, pictured below,
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1.1.Distinguish between abiotic and biotic factors.
1.2.Suggest adaptations Marram grass could have in order to grow on sand dunes.
1.3.For a named abiotic variable, outline how the range of tolerance for Marram grass could be measured in its natural habitat.
2.Describe an adaptation that allows a named organism to survive in desert habitats.