8th grade ecology quiz

Question Answer
Ecology the study of the interactions of living things with each other and their physical enviorment
Biosphere all living things exist
Ecosystem a group of living things and their non living enviorment
Community all the diffrent species that live in an ecosystem
Population organisms of the same species
Organism a single living thing
Eco system a group of living things and non living things
Biotic factor living things in an ecosystem
Abiotic factors non- living
population the same species that live together in an ecosystem
community different species that live together in an ecosystem
competative relationship organisms with the same needs compete for the same recources
Harmful relationship one organism benefits while one is harmed
Beneficial relationship one or both organisms gain from the relationship. Neither is harmed/
Autotrophs organisms that make their own food by photosynthesis
Heterotrophs cannot make their own food. They eat autotrophs
Herbivores eat plants
Carnivores eat animals
Omnivores eat both
Energy usually starts with ______ the sun
Identify: producer, primary consumer, secondary producer, Teritary consumer
Decomposers organisms that obtain energy by consuming wastes and dead organisms
Scavenger an animal that feeds on dead or decaying orgains
Ecological succession organisms are replaced with new ones, a community replaces another community
Urban growth the spreading of buildings, homes, and cities
Pollution acid rain, global warming

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