Ecosystem+structure

Structure
[|Biotic] and [|abiotic] components of an ecosystem. [|Trophic level]and how this relates to [|food chains and webs]. [|Producers], consumers such as [|decomposers], [|herbivores], [|carnivores],

[|Species], [|population], [|habitat], [|niche], [|community], [|competition], [|parasitism], [|mutualism], [|predation] and [|herbivory]

[|Ecological pyramids] ([|exercise])