Examlex
There is no clear line of demarcation between the ileum and the jejunum.
Facilitation
The process by which certain living organisms make an environment more suitable for other organisms to inhabit, often leading to changes in the community composition.
Ecosystem
A biological community of interacting organisms and their physical environment, functioning as a system through nutrient cycles and energy flows.
Immature Ecosystems
Ecosystems in the early stages of development, which have yet to reach a stable climax community and are characterized by rapid changes in species composition and structure.
Food Webs
A food web consists of all the food chains in a single ecosystem.
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