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Biology

TermDefinition
Autotroph organism that captures energy from the sun or chemicals and use it to produce its own food
primary producer first producer of energy-rich compounds that are later used by other organism
photosynthesis process used by plants to make food from sunlight
chemosynthesis process in which chemical energy is used to produce carbohydrates
heterotroph organism that obtains food by consuming other living things
consumer organism that relies on other organisms for its food and energy
carnivore organism that obtains energy by eating animals
herbivore organism that obtains energy by eating only plants
scavenger animal that consumes carcasses of other animals
omnivore organism that obtains energy by eating both plants and animals
decomposer organism that breaks down and obtains energy from dead organic matter
detritivore organism that feeds on plant and animal remains and other dead matter
food-chain series of steps in a ecosystem in which organisms transfer energy by eating and being eaten
phytoplankton photosynthetic algae found near the surface of the ocean
food web network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem
zooplankton small free floating animals that form part of plankton
trophic level each level in a food chain or food web
ecological pyramid illustration of the relative amounts of energy or matter contained within each trophic level in a given chain or food web
biomass total amount of living tissue within a given trophic level
biogechemical cycle process in which elements, compounds, and other forms of matter are passed from organism to another
nutrient chemical substance that an organism needs to sustain life
nitrogen fixation process of converting nitrogen gas into nitrogen compounds that plants can absorb and use
denitrification process by which bacteria convert nitrates into nitrogen gas
limiting nutrient single essential nutrient that limits productivity in an ecosystem
Created by: ShiaLabouf