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Science

the systematic study of the structure and behaviour of the physical world by watching, measuring and performing experiments

Biotic

living environment e.g. fauna and flora

Abiotic

non-living environment e.g. rocks

Species

a group of organisms that can interbreed and produce a fertile offspring

Habitat

the environment in which a species normally lives or the locations of a living organism

Population

a group of organisms of the same species who live in the same area at the same time

Community

a group of populations living and interacting with each other in an area

Ecosystem

a community and its abiotic factors

Ecology

the study of relationships between living organisms and the environment

Autotroph

an organism that synthesises its organic molecules from simple inorganic substances(plant)

Heterotroph

an organism that obatins organic molecules from other organisms (animal)

Consumer

an organism that ingests other organic matter that is living or recently killed

Producer

an organism that makes food using inorganic material(sunlight).plant-photosynthesis

Detritivore

an organism that ingests non-living oranic matter e.g. snails and worms

Saprotroph

an organism that lives in or on non-living organic matter, secreting digestive enzymes into it and absorbing the products of digestion

Trophic Level

the position an organism occupies in a food chain-what it eats and what eats it

Food Web

a series of related food chains. Organisms are related by predator-prey and consumer-resource interactions

Decomposers

organisms, typically microorganisms, that feed on dead plant and animal matter, causing the matter to be recycled by other living things

Niche

an organism's habitat and function in the food web

Competition

a contest between individuals, groups, nations, animals etc. for territory, a niche or a location of resources

Herbivory

the consumption of herbacecous vegetation

Predation

relationship where one animal(predator) catches and kills another(prey) to eat

Parasitism

relationship where one organism(parasite) lives in or on another(host) for most of its lifecycle deriving its nutrients from the host

Mutualism and commensalism

a relationship in which both organisms benefit from the association(opp of symbiosis)

Symbiosis

a relationship where not all organisms benefit from the association(opp of mutualism)

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