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Ch.18,19,20 Science

Chapter 18,19,20 Science Vocabulary

environment all the nonliving things around an organism and aggect the life of the the organism
habitat particluar place where an organism lives
population tatal number of individuals of one species occupying the same area
community made up of all the population that live and interact with each other in an area
niche the role of and organism within its community
biotic things that are living or were once living
abiotic things that are nonliving and never were living
ecosystem community6 of organisms- producers, consumers, and decomposer- that interact with each other an their surroundings
symiosis the close physical relationship between two organisms and exists in 3 forms
commensalisms a relationship where only one thing benifits from a symbiosis
mutalism a relationship between 2 organisms in which both benefit
parasitism one organism(the parasite) lives on and obtains its food from another organism- (the host) host is harmed not helped
consumer organism that gets its energy from eating other organisms or plants
producer organism that can make its own food by photosynthesis or chemosynthesis
herbivore organisms that eat only plants
carnivore consumer that eat only meat
omnivore consumers that eat both plants and animals
decomposer organism that breaks down tissue and released nutrients and carbon dioxide back into the ecosystem
scavenger a consumer of dead or decaying plant matter and animal. It eats things that are dead or have been killed by something else
food chain series of stages that shows the transfer of energy from producers to consumers and decomposers
food web combination of all the overlapping food chains in an ecosystem
limit factor any condition that influences the growth or survival of an organism of species (ex. wind, water,air)
nonliving limiting factor each organism fills a certain niche in its community and competition results when two organisms try to fill the same niche. They will compete for food, water, ect
predator animals that eat and catch other organisms
prey the animals predators eat
adaptation a characeristic that increased the chance of an organism to survive in an environment
Created by: polarbears1