News tagged with food chain
Related topics: bacteria , climate change , mercury
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 and is available under the GNU Free Documentation License.
(Medical Xpress)—Subway may promote itself as the "healthy" fast food restaurant, but it might not be a much healthier alternative than McDonald's for adolescents, according to new UCLA research.
Health May 08, 2013 | not rated yet | 0
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.
Medications Apr 24, 2013 | not rated yet | 0
The European Commission set out Monday what it said would be a revolution in food safety from farm to fork, drawn up in response to the scandal of horsemeat sold as beef.
Health May 06, 2013 | not rated yet | 0
(HealthDay)—Medical practices that purchase Botox may unwittingly be purchasing a fraudulent product not approved by the U.S. Food and Drug Administration for sale in the United States, according to an ...
Medications Apr 29, 2013 | not rated yet | 0