A research team collects samples of dead seaweed from a shore. The samples must reach a laboratory with as little decomposition as possible. Each sample is placed in a transport chamber in which the temperature, water availability and oxygen concentration can be controlled.
Explain how the conditions inside the transport chamber should be controlled to reduce the decomposition of the seaweed samples.
101 exam-style questions on Edexcel GCSE Biology 9.3 Material cycles and decomposition, covering 9.3.1 Cycling of materials through ecosystems, 9.3.2 The carbon cycle, 9.3.3 The water cycle, 9.3.4 The nitrogen cycle, 9.3.5 Indicator species and pollution, 9.3.6 Decomposition in preservation and composting, and 9.3.7 Rate changes in decay of biological material. Each one has a worked solution and a mark scheme showing where the marks go.