Ecology ch 2

Question Answer
producer An organism that can make its own food
consumer An organism that obtains energy by feeding on other organisms
herbivore An consumer that obtains energy by eating only plants
carnivore An consumer that obtains energy by eating only animals
omnivore A consumer that obtains its energy by eating plants and animals
scavenger A carnivore that feeds on the bodies of dead or decaying organisms
decomposer An organism that gets energy by breaking down biotic wastes and organism and returns raw materials to the soil and water
food chain A series of events in a ecosystem in which organisms transfer energy by eating and be eaten
food web The pattern of overlapping feeding relation ships or food chains among the various organisms in an ecosystem
energy pyrmaid A diagram that shows the amount of energy that moves another feeding level to another in a food web
biome A group of ecosystems with similar climates and organisms
climate The average annual conditions of temperature precipitation winds and clouds in area
desert A dry region that on average less than 25 cen. of precipitation per year
rain forest A forest that receives at least 2 meters of rain per year mostly occurring in the tropical rain wet zone
Emergent layer The tallest layer of the rain forest in which receives the most sun light and can reach up to 70 meters of rain per year
canopy underneath trees up to 50 cen. tall form a leafy roof called the canopy
understory… Below the canopy a layer of shorter trees and vines around 25 cen. long form a understory
Grassland An area populated mostly by grasses and other non woody plants that gets 25 to 75 cn. of rain per year
savvana A grass land located close to the equator that may include shrubs and small trees and receives as much as 120 cn of rain per year
deciduous forest A tree that sheds its leaves during the particular season and grows new one each year
boreal forest DEnse forest of evergreens located in the upper regions
coniferous tree A tree that provides its seed in cones and that a needle shaped leaves coated in a waxy substance to reduce water loss
tundra An extremely cold dry biome
biogeography The study of of where organisms live and how they got there
dispersal The movement from one place to another
continental drift The hypothesis that the continents slowly move across earths surface
exotic species Species that are carried to a new location by people
evaporation The process by which molecules at the surface of a liquid adsorb enough energy to change to a gas
precipitation Any form of water that falls from the clouds and reaches earths surface an snow,rain,sleet and hail.
condensation The change in statement from gas to a liquid
nitrogen fixation The process of changing free nitrogen into nitrogen compounds that plants can adsorb and use
estuary A kind of wetland formed were fresh water forms river mixes with salty ocean water
neritic zone
intertidal zone

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