News tagged with food chain

Related topics: bacteria , climate change , mercury

The slow decline of fast food in America

The hospitals of the Truman Medical Centers in Kansas City, Missouri no longer serve fast food in their cafeterias, after ending a contract with McDonald's in 2012—two years ahead of schedule.

Nov 09, 2014
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New York's trans-fat ban is working: study

(HealthDay) -- New York City's restriction on the use of trans fats in foods served at restaurants is helping Big Apple residents cut down on the unhealthy fat, a new study shows.

Jul 16, 2012
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NZ toxic contaminant levels halved, study shows

Blood samples taken by Massey researchers to measure the concentrations of toxic environmental contaminants, called persistent organic pollutants (or POPs), show their levels halved in the past 15 years among New Zealand's ...

Nov 21, 2013
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Long road from farm to fork worsens food outbreaks

(AP) -- The recent listeria outbreak from cantaloupe shows that large-scale occurrences of serious illnesses linked to tainted food have grown more common over the years, partly because much of what we eat ...

Oct 02, 2011
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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