Ecology The study of ecosystems Levels of organization

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Ecology The study of ecosystems

Ecology The study of ecosystems

Levels of organization Ø Small to big

Levels of organization Ø Small to big

Atoms

Atoms

Molecules

Molecules

Macromolecules

Macromolecules

Organelles

Organelles

Cell

Cell

Tissue

Tissue

Organ

Organ

System

System

Organism Ø One individual

Organism Ø One individual

Organization in ecosystem Ø Organism – one individual Ø Population – same species in

Organization in ecosystem Ø Organism – one individual Ø Population – same species in one area

Levels of organization Ø Population – All the same species in one area Ø

Levels of organization Ø Population – All the same species in one area Ø Community – All the populations in an area

Levels of organization Ø Community – All the species in an area Ø Ecosystem

Levels of organization Ø Community – All the species in an area Ø Ecosystem – All the communities and abiotic factors in an area

Levels of organization Ø Ecosystem – All the communities and abiotic factors in an

Levels of organization Ø Ecosystem – All the communities and abiotic factors in an area Ø Biome – A region of earth with similar ecosystems

Levels of organization Biome – A region of Ø Biosphere – Thin layer earth

Levels of organization Biome – A region of Ø Biosphere – Thin layer earth with similar surrounding earth that ecosystems contains ALL Biomes and ecosystems Ø Ø

Biotic factors Ø ALL plants, animals and other microscopic) in an area life (Even

Biotic factors Ø ALL plants, animals and other microscopic) in an area life (Even

Abiotic factors Non-living environmental factors Ø Temperature Ø Wind Ø Water Ø Sunlight Ø

Abiotic factors Non-living environmental factors Ø Temperature Ø Wind Ø Water Ø Sunlight Ø Rocks Ø Soil

Autotrophs – producers Ø Transform inorganic energy (light) into chemical energy

Autotrophs – producers Ø Transform inorganic energy (light) into chemical energy

Heterotrophs - consumers Ø Organisms that must obtain their energy by eating other organisms

Heterotrophs - consumers Ø Organisms that must obtain their energy by eating other organisms

Niche Ø The role an organism fills in its community Ø Its “job”

Niche Ø The role an organism fills in its community Ø Its “job”

Niche determined by Ø Habitat Ø Place in food chain Ø Specific food types

Niche determined by Ø Habitat Ø Place in food chain Ø Specific food types Ø When they eat or hunt

Great horned owl and red tailed hawk have different niches Both eat small rodents

Great horned owl and red tailed hawk have different niches Both eat small rodents Ø Both live in same area Ø BUT owls hunt at night, hawks hunt during day Ø

Ecosystems Ecosystems Ecosystems Ecosystems Ecosystems Ecosystems Lets letEcosystems Ecosystems Ecosystems Ecosystems Ecosystems Ecosystems Lets let
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