FACTOID # 118: Australians lead the world in hours worked and membership in many voluntary organizations. How do they find the energy?
 
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Encyclopedia > Primary producer

The term primary producer (or autotroph) describes a trophic level in an ecosystem that includes all organisms which make their own food. Primary producers are generally green plants that use energy from the sun in the process of photosynthesis to transform inorganic compounds to simple organic compounds to use for sustainace. An autotroph (in Greek eauton = self and trophe = nutrition) is an organism that produces its own cell mass and organic compounds from carbon dioxide as sole carbon source, using either light or chemical compounds as a source of energy. ... In ecology, the trophic level is the position that an organism occupies in a food chain - what it eats, and what eats it. ... In ecology, an ecosystem is a naturally occurring assemblage of organisms (plant, animal and other living organisms—also referred to as a biotic community or biocoenosis) living together with their environment (or biotope), functioning as a unit of sorts. ... In biology and ecology, an organism (in Greek organon = instrument) is a living being. ... Divisions Green algae land plants (embryophytes) non-vascular embryophytes Hepatophyta - liverworts Anthocerophyta - hornworts Bryophyta - mosses vascular plants (tracheophytes) seedless vascular plants Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongue ferns seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering... Leaf. ... Inorganic chemistry is the branch of chemistry concerned with the properties and reactions of inorganic compounds. ... Organic has several meanings and related topics. ...


  Results from FactBites:
 
Eating for Health: a Diet Action Plan for Scotland - 2. Primary Producers (2171 words)
By producers we mean, basically, the farming and fish industries.
Producers have, therefore, demonstrated clearly their capability to respond positively and effectively to changes in consumer demand.
Over the last 15 years livestock producers have achieved significant reductions in the fat content of carcass meat through the development of leaner breeds of livestock, new feeding practices and the operation of carcass classification schemes.
Autotroph - Wikipedia, the free encyclopedia (307 words)
An autotroph (from the Greek autos = self and trophe = nutrition) is an organism that produces organic compounds from carbon dioxide as a carbon source, using either light or reactions of inorganic chemical compounds as a source of energy.
Plants and other organisms using photosynthesis are photolithoautotrophs; bacteria that utilize the oxidation of inorganic compounds such as hydrogen sulfide or ferrous iron as an energy source are chemolithoautotrophs.
Carnivorous animals ultimately rely on autotrophs because the energy and organic building blocks obtained from their prey comes from autotrophs eaten by the prey.
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