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Sookdeo-Ecology P1

Sookdeo-Ecology Chapter 3

ecology study of how organisms interact with one another and with the environment
biotic factor living part of the environment
abiotic factor non-living part of the environment(ex.water,soil)
population a group of individuals of the same species that live in the same place
species organisms that are closely related and can mate to produce offsprings
community different species or population that live together in a habitat
ecosystem community of organisms that live together in their nonliving environment
habitat place where an organism usually live
niche the role the population plays in the ecosystem
producer autotrophs, use energy to make food
decomposer gets energy from breaking down the remains of other organisms
herbivore consumer that eats only plants
carnivore consumer that eats only animals
omnivore consumer that eats plants & animals
food chain path of energy transfer from producers to consumers
food web complex feeding relationship among organisms in an ecosystem
predator animal that eats another animal for food & energy
prey animal eaten by the predator
symbiosis close long term relationship between different species
mutualism symbiotic relationship where both organisms benefit
commensalism symbiotic relationship where one organisms benefits and the other is not affected
parasitism symbiotic relationship where one organism benefits another is harmed
competition organisms fight for the same resources
limiting factor factor that keeps a population from reaching its full potential size
native species species that naturally live in an ecosystem
introduced species species that have been brought to an ecosystem
wetland an area where land is covered by water for at least part of the year
coral reef diverse marine ecosystem; grows in water that is warm shallow & clear
biosphere all life on Earth and all parts on Earth where life exist
atmosphere a layer of all the gases that surround Earth
hydrosphere all the water of the Earth's surface as well as the water vapor and rain in the atmosphere and water underground
geosphere solid earth which consist of rocks, continents, and the ocean floor
climate patterns and averages of temperature from year to year in an area over a long period of time
weather short term changes in temperature, precipitation, clouds and wind from day to day or minute to minute
greenhouse effect process in which certain gases, carbon dioxide, methane and water vapor, trap sunlight energy in Earth's atmosphere as heat
biome a group of ecosystems that share similar climates and typical organisms
canopy dense covering formed by the leafy tops of tall rain forest trees
understory layer in a rainforest found underneath the canopy formed by shorter trees and vines
humus materials formed from decaying leaves and other organic matter
taiga biome with long cold winters and a few months of warm weather; dominated by evergreens; also called boreal forest
permafrost layers of permanently frozen subsoil found in the tundra
autotroph organisms that are able to make their own food; producer
heterotroph organisms that obtain energy by eating other living things; consumer
photic zone sunlit region near the surface of water
aphotic zone dark layer of the ocean below the photic zone where sunlight does not penetrate
plankton microscopic organisms that live in the aquatic environments; includes phytoplankton and zooplankton
wetland ecosystem in which water either covers the soil or is present at or near the surface for at least part of the year
estuary kind of wetland formed where a river meets the ocean; freshwater mixes with saltwater
Created by: dsookdeo