food+chain,foodwebs+and+pyramids

a tribute to one of the top carnivores p.s. i cannot vouch for the sound of a fox or what it says but we can imagine Ylvis - The Fox (What Does the Fox Say?) [Official music video HD] [] food chains
 * **the transfer of energy form one organism to another as organisms feed in a sequence.**
 * producers are organisms of the first feeding level that are able to produce their own food
 * plants (terrestrial), phytoplankton (aquatic) and some bacteria are example of producers and are classed as photoautotrophes or chemoautotrophes
 * **photo** (light) **autotrophes** (producers) use sunlight energy to convert inorganic carbon dioxide and water to chemical energy - food (glucose)
 * chemo or chemical autotrophes - bacteria obtain their energy by the breakdown of chemical compounds usually along processes that follow decomposition. e.g. nitrifying bacteria that convert ammonia compunds of a decaying animal to soil nitrates

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another look at food chains and food webs you can allow the next video to load and learn about cycles

media type="youtube" key="v6ubvEJ3KGM" width="877" height="348" Pair group exercises 1 & 2 below. to be completed by Monday 13th November
 * 1) [[file:food web, trophic levels pyramids.docx]]

a decent doc on ecosystems https://www.youtube.com/watch?v=bVVBqhZAiJY