News tagged with food chain

Related topics: bacteria · climate change · mercury

FDA device will screen for fake medicines overseas

U.S. health officials are making a high-tech screening device available to African authorities to help spot counterfeit malaria pills in hopes that the technology may eventually be used to combat the fake drug trade worldwide.

Apr 24, 2013
popularity0 comments 0

Runners and riders in Europe's horsemeat scandal

(AP)—The European Union agreed Friday to begin random DNA checks on meat products in a bid to put a lid on a spreading scandal over horsemeat, while British authorities announced traces of horse had been found in school ...

Feb 15, 2013
popularity0 comments 2

UK: Horse drug may have entered human food chain

(AP)—Six horse carcasses that tested positive for an equine painkiller may have entered the human food chain in France, Britain's food regulator announced Thursday—and the agency's chief said horsemeat tainted with the ...

Feb 14, 2013
popularity0 comments 0

Food chain

Food chains, also called food webs, describe the eating relationships between species within an ecosystem or a particular living place. Many types of food chains or webs are applicable depending on habitat or environmental factors.

Organisms are connected to the organisms they consume by lines representing the direction of organism or energy transfer. It also shows how the energy from the producer is given to the consumer. Typically a food chain or food web refers to a graph where only connections are recorded, and a food network or ecosystem network refers to a network where the connections are given weights representing the quantity of nutrients or energy being transferred.

Sometimes, on a food chain, each animal is separated with an arrow. If it is pointing right, it means "is eaten by" or "is consumed by".

Every single food chain known to Man begins with a type of autotroph, whether it be a plant or some kind of unicellular organism.

This text uses material from Wikipedia, licensed under CC BY-SA

Subscribe to rss feed