7th Grade7th Grade

Unit 2: Unit 2:

EcosystemsEcosystems

Lesson 2: Lesson 2:

EcosystemsEcosystems

Vocabulary of Instruction:Vocabulary of Instruction:

AbioticAbioticAbioticAbiotic•Inanimate, inorganic, not living.

•Examples:–Water–Water

–Soil

–Sunlight

–Rocks

–Wind/Air

AdaptationAdaptationAdaptationAdaptation•Changes in an

organism's

physiological

structure or structure or

function or

habits that

allow it to

survive in

new

surroundings.

BiomeBiomeBiomeBiome•Is the largest

ecological unit.

It consists of a

group of

related

Aquatic Biome Ocean Biome

related

ecosystems

that share some

kinds of special

plant life and

weather

patterns.

Grassland Biome

BiosphereBiosphereBiosphereBiosphere•Areas of the

earth

where life where life

exists.

BioticBioticBioticBiotic• Relating to, produced by, or caused by livingorganisms.

• Examples:• Examples:– Rabbit

– Wolf

– Bacteria

– Plants/Grass

– Mushroom/ Fungi

CommunityCommunityCommunityCommunity•All the organisms

that live in a

given habitat and

affect one

another as part another as part

of the food web

or through their

various

influences on the

physical

environment.

EcosystemEcosystemEcosystemEcosystem•Is the network

of the

interactions

between

organisms and

Lake EcosystemLake Ecosystem

organisms and

their

environment,

and has both

living and

nonliving

components.

River River River EcosystemEcosystemEcosystem

Marine EcosystemMarine Ecosystem

• Is the set of physical and environmental conditions that determines where an organism or

HabitatHabitatHabitatHabitat

an organism or group of organisms can live most comfortably; factors include climate, amount of rainfall, and amount of sunlight.

PopulationPopulationPopulationPopulation•Is a group of

organisms

of the same

species that species that

live

together.

SpeciesSpeciesSpeciesSpecies•Is a group of

organisms

that have

common common

ancestors,

and are made

up of one or

more

populations.