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Enviro Sci Ch. 2

Chapter 2 vocabulary words and definitions

TermDefinition
adiotic factors some adiotic factors that influence living things are tamperature,sunlight,humidity
biotic factors are the living parts of a ecosystem
commensalism is a relationship in which one species benifits and the other is neither harmed nor helped
community a group of interacting populations of different species
competition occurs when two or more organisms of the same or different species attempt to use the same limited resource
ecosystem includes all the different organisms living in a certain area along with their physical environment
evolution a change the genetic characteristics of populations from one generation to the next
extinction the irreversible disappearance of a population or a species
habitat the actual place an organism lives
adaptation an inherited trait that increases an organisms chance of survival and reproduction in a certain environment
coevolution when two or more species evolve in response to each other
host the organism the parasite takes its nourishment from
mutualism a cooperative partnership between two species in which both species benefit
natural selection describes the unequal survival and reproduction that results from the presence or absence of particular traits.
niche its way of life
organism one individual living thing
parasites organisms that live in or on another organism and feed on it without immediately killing it
parasitism relationship between the parasite and its host
population a group of individuals of the same species living in a particular place
predation one organisms kills and eats another organism
predator the one that does all the eating
prey the organism that is eaten
species a group of organisms that are able to produce fertile offspring and that share common genes and therefore resemble each other
Created by: PavlishFamily
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