Organization of Life

Defining an ecosystem Examples: Oak forest Coral Reef Vacant lot Basically, all of the organisms living together in a physical environment

Components of an Ecosystem Energy Minerals and nutrients CO2 O2 H2O Living organisms

Living and nonliving Use the terms biotic and abiotic instead Biotic factors: living parts of ecosystem EX: plants and animals Can be dead or living Can be whole or pieces Waste counts too!

Living and nonliving Abiotic: nonliving parts of ecosystem EX: air, water, rocks, sand, light, temperature

Classify them! In the space provided, write “B” next to biotic factors and “A”next to abiotic factors. ______ animals ______ temperature ______ air ______ dead parts of organisms ______ organisms’ waste products ______ water ______ rocks ______ plants ______ sand ______ dead organisms ______ light

From Small to Big: Organizing Life An organism is only 1 creature A species is all of the same type of organism that can mate

From Small to Big: Organizing Life A population is a group of the same species living in the same place at the same time A community is a location that has more than one population in it

Habitats Different places in which animals and plants live All have different traits Organisms do well in their native habitats