In Environment and Ecology, which term combines the facts “a pond, forest or grassland can be studied as an ecosystem” and “biotic and abiotic components interact within it”?

Correct Answer: Option B — Ecosystem. Ecosystem is correct because it is biotic and abiotic components interact within it. Ecosystem is also specifically associated with a pond, forest or grassland can be studied as an ecosystem. Two additional identifying facts are that Ecosystem is energy flows while nutrients cycle through the system and Ecosystem is associated with a pond, forest or grassland can be studied as an ecosystem. Why the other options are incorrect: • Option A — Food Chain: Food Chain is producers form the base of most grazing food chains. It is incorrect here because its separate identifying association is interconnected food chains form a food web. • Option C — Biodiversity Hotspot: Biodiversity Hotspot is the concept prioritizes globally important conservation regions. It is incorrect here because its separate identifying association is a hotspot is not simply any place with many species. • Option D — Wetland: Wetland is marshes, floodplains, lakeshores and mangrove areas can be wetlands. It is incorrect here because its separate identifying association is the Ramsar Convention provides an international wetland framework. Exam Takeaway: Connect Ecosystem with “biotic and abiotic components interact within it” and “a pond, forest or grassland can be studied as an ecosystem”.