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environment sciences

Chapter 2 -vocab

TermDefinition
abiotic factors nonliving parts of an ecosystem
adaptation an inherited trait that increases an organism's chance of survival and reproduction in a certain environment
biotic factors living parts of an ecosystem
coevolution two or more species evolving in response to each other
commensalism relationship between two species in which one species benefits and the other is neither harmed nor helped
community a group of interacting populations of different species
competition the relationship between species that attempt to use the same limited resource
ecosystem all living organisms in a certain area as well as their physical environment
evolution change in the genetic characteristics of a population from one generation to the next
extinction the irreversible disappearance of a population or a species
habitat place where an organism lives
host organism from which a parasite takes its nourishment
mutualism a relationship between two species in which both benefit
natural selection any natural substance that humans use, such as sunlight, soil, water, plants, and animals
niche an organism's way of life
organism an individual living thing
parasites organism that lives in or on another organism and feeds on it without immediately killing it
parsitism the relationship between a parasite and its host
population a group of individuals of the same species living in a particular place
predation the act of killing and eating another organism
predator organism that kills and eats another organism
prey organism that is killed and eaten by a predator
species a group of organisms that are able to produce fertile offspring and that resemble each other in appearance, behavior, and internal structure
Created by: purplepenguin
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