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Ecology & Interactio

Vocabulary words for 7th Grade Science - Ecology & Interaction Among Living Thin

habitat environment that provides the things an organism needs to live, grow, and reproduce
biotic living parts of the habitat (ex: tree, insect)
abiotic nonliving parts of the habitat (ex: water, soil)
organism a living thing
population all the members of one organism in a particular area
community all the different populations that live together in one area
ecosystem all the living and nonliving things in a particular area
biomes a group of land ecosystems with similar climates and organisms
food chains series of events in which one organism eats another and obtains energy
food web consists of many overlapping food chains in ecosystems (points to the consumer)
energy pyramid as you move up the energy pyramid you lose energy
plankton tiny drifting organisms found near the surface of aquatic environments
phytoplankton plant like, include autotrophic Protists (plant cell)
zooplankton animal like, include heterotrophic, decomposers or parasite Protist (Spongebob)
niche the role of an organism in its habitat (its job)
competition struggle between organisms to survive as they attempt to pursue the same limited resources
predation an interaction in which one organism kills another for food
predator organism that does the killing
prey organism that is killed
producer (autotroph) organism that makes its own food
consumer (heterotroph) obtains energy from feeding on other organisms
herbivores only eats plants
carnivores only eats animals
omnivores eats both plants and animals
decomposer break down dead waste and return the raw material back to the ecosystem (bacteria, fungi, worms)
scavenger a carnivore that feeds on the bodies of dead organisms
Created by: Ms. Thacker