Summary #2 "Living Things and Their Enviroment"

An ecosystem is all the living things and nonliving things in an area interacting with each other. Ecology is the study of how all these things interact in order to survive. Freshwater ecosystems cover less space than saltwater ecosystem. Saltwater ecosystems can cover entire oceans. It doesn´t matter where they are or what they look like, all ecosystems have the same parts. The nonliving parts of an ecosystem are the abiotic factors. Abiotic factors include water, minerals, sunlight, air, climate, and soil. These organisms---make up the biotic factors, or living parts, of an ecosystem. Each organism contributes something to the others in the ecosystem. Plant and algae are called producers. They produce oxygen and food that animals need. Animals consume, or eat, plants need to make food. They are very important part of an ecosystem. Fungi and bacteria are decomposer.

Ecosystem (habitat)