unit 5B test review #1

Ecological succession is NOT

• a process where one ecological community replaces another community

• the food chain

• the predictable way the ecological community develops

• effected by human actions

a gradual change of an ecosystem in an area with soil is

• primary succession

• secondary succession

• climax stage

• unsustainable

an ecological disturbance

• is an event that changes the ecosystem

• could be caused by a wildfire or tsunami

• effects biotic and abiotic factors

• all of these

a gradual change of an ecosystem in an area with no soil is

• primary succession

• secondary succession

• climax stage

• unsustainable

equilibrium means the ecosystem has

• homeostasis

• stability

• equal numbers of populations

• no humans living in the area

the first living organisms in an uninhabited area are

• the pioneer species

• algae

• grasses and shrubs

• rock or soil

describe the sustainability of a climax community

• high sustainability

• low sustainability

describe the sustainability of bare rock

• high sustainability

• low sustainability

Lichen are

tall hard wood forests