A-Level AQA Geography Ecosystems & Processes: What are trophic levels?

A. The

Question

What are trophic levels?

A. These are stages of a food chain or food web. At each new stage there are species which take energy from those in the previous stage. This process supports life.

B. This is a stage in succession of plants in an ecosystem. At each new stage a better adapted species will dominate the local environment as it claims a niche in the local conditions.

C. Trophic levels are a type of species which is responsible for the decay process in the ecosystem. These decomposers consume the dead matter and create conditions for regrowth.

D. Trophic levels are a measure of the biodiversity within an ecosystem. An ecosystem with high trophic levels is considered to be healthy and free from human interference.

What are trophic levels? A - AQA - A-Level Geography - Question 6 - 2019 - Paper 1

Worked Solution & Example Answer:What are trophic levels? A - AQA - A-Level Geography - Question 6 - 2019 - Paper 1

A. These are stages of a food chain or food web.

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