Biotic Components

The video tutorial explains the biotic components of ecosystems, focusing on living organisms like plants and animals. It compares monarch and swallowtail butterflies to illustrate species differences. The concept of species is defined as a group of organisms that can reproduce among themselves, and a population is a group of the same species in an area. The video also covers communities, which consist of different populations in an area, and natural communities, which include all plants and animals interacting with their environment. Finally, it discusses the variable size of ecosystems, from small tidal pools to large mountain ranges, using a hemlock forest as an example.

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