Biology · B Form and function. The idea in plain words, the rules to remember, the mistake to avoid and a worked example, written and checked by Mega Lecture.
A habitat is the place where an organism lives, described by its location and its physical conditions. Organisms are adapted to the abiotic (non-living) factors of their habitat, such as temperature, water, light, salinity and soil pH.
Each species can survive only within a range of tolerance for each factor. Outside that range it cannot live, so abiotic factors act as limiting factors and set where a species is found.
On land, temperature and rainfall together decide which biome develops. Unrelated species living in the same biome often evolve similar adaptations, because they face the same conditions. This is convergent evolution.
Students name a biome from temperature alone. Hot desert and tropical forest can have the same temperature, so always read the rainfall as well.
Answer: No. The snail will be absent because the pH is below its range of tolerance.
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