A conservation ecologist studying a blanket bog in northern Scotland records the presence of Sphagnum mosses, carnivorous sundews, and common frogs. They also measure the waterlogged, highly acidic soil (pH≈4.0\text{pH} \approx 4.0pH≈4.0), low oxygen levels, and restricted nutrient availability, noting how these conditions limit decomposition and dictate species distribution.
Which level of ecological organisation does this complete description represent?
A community
A habitat
An ecosystem
A population
37 exam-style questions on OCR A A Level Biology Ecosystems. Each one has a worked solution and a mark scheme showing where the marks go.