Ecosystems 3.3.4

either are alive or were once alive

Examples: decaying plant and animal matter

biotic

things that were never alive

​abiotic

Living and Nonliving

• population: group of the same kind of organism

• community: all of the living things in an area

• ecosystem: includes the local community plus all of the nonliving elements in the environment. An ecosystem contains both biotic and abiotic factors.

• biosphere: all parts of Earth where organisms live

Levels of organization in pictures.
Draw some sketeches in your notebook.

Aquaponics is a method of farming indoors in a controlled environment. There are many ways to set up aquaponics, but all aquaponic systems contain:

• an animal that produces waste, usually fish; and

• plants to grow as crops.