HabitatAn environment that provides the things an organism needs to live, grow and reproduce

Biotic FactorsThe living parts of a habitat

clown fishsea anemone

PandaBamboo plants

Abiotic FactorsThe non-living parts of a habitat

Water Sunlight Oxygen Temperature Soil

Abiotic FactorsThe non-living parts of a habitat

watertemperature of wateroxygen (dissolved in the water)

oxygen (air)sunlightsoil or dirttemperature

Biotic and Abiotic Factors

• Biotic = living components of an ecosystem including anything that was once alive.

• Abiotic = non living components of an ecosystem. These were never alive.

Putting it all together What basic needs are met by an organisms

habitat? Food water shelter and other things it needs

to live.

Putting it all together Why do different organisms live in different

habitats? Because different organisms have different

needs for survival.

Putting it all together Using the word photosynthesis, explain

why water and sunlight are two abiotic factors that are important to all organisms

Species

A group of organisms that are physically similar and that can mate and produce fertile offspring.

PopulationAll the members of one species in a particular area.

CommunityAll the different populations that live together in an area.

EcosystemA community of organisms that live in an area along with their non living surroundings

Ecology

The study of how living things interact with each other and their environment.

Ecological Organization

Single organism

Population

Community

Ecosystem

Biome

Smaller

Larger

Putting it all together Would all the

trees in a forest make up a population? Why or Why not?

Putting it all together What is the

difference between a community and an ecosystem?

Community Ecosystem

Putting it all together Why do ecologists

study both the biotic and abiotic factors in an ecosystem?