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2. Food web - Wikipedia

   en.wikipedia.org/wiki/Food_web

   A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Ecologists can broadly define all life forms as either autotrophs or heterotrophs, based on their trophic levels, the position that they occupy in the food web.

3. Trophic level - Wikipedia

   en.wikipedia.org/wiki/Trophic_level

   The trophic level of an organism is the position it occupies in a food web. Within a food web, a food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the number of steps it is from the start of the chain. A food web starts at trophic level 1 with primary ...

4. Heterotrophic nutrition - Wikipedia

   en.wikipedia.org/wiki/Heterotrophic_nutrition

   Heterotrophic nutrition. Heterotrophic nutrition is a mode of nutrition in which organisms depend upon other organisms for food to survive. They can't make their own food like Green plants. Heterotrophic organisms have to take in all the organic substances they need to survive. All animals, certain types of fungi, and non-photosynthesizing ...

5. Consumer (food chain) - Wikipedia

   en.wikipedia.org/wiki/Consumer_(food_chain)

   Consumer (food chain) A consumer in a food chain is a living creature that eats organisms from a different population. A consumer is a heterotroph and a producer is an autotroph. Like sea angels, they take in organic moles by consuming other organisms, so they are commonly called consumers. Heterotrophs can be classified by what they usually ...

6. Food chain - Wikipedia

   en.wikipedia.org/wiki/Food_chain

   Food chain in a Swedish lake. Osprey feed on northern pike, which in turn feed on perch which eat bleak which eat crustaceans.. A food chain is a linear network of links in a food web, often starting with an autotroph (such as grass or algae), also called a producer, and typically ending at an apex predator (such as grizzly bears or killer whales), detritivore (such as earthworms and woodlice ...

7. How To Save Money on Pet Food by Making Your Own - AOL

   www.aol.com/finance/save-money-pet-food-making...

   Having a pet can be one of life's greatest joys. So, it makes sense to take care of your furry pal as best as you can, including the type of food you provide. See: 6 Bad Habits That Hike Up Your...

8. Soil food web - Wikipedia

   en.wikipedia.org/wiki/Soil_food_web

   The soil food web is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals. Food webs describe the transfer of energy between species in an ecosystem. While a food chain examines one, linear, energy pathway through ...

9. Plankton - Wikipedia

   en.wikipedia.org/wiki/Plankton

   Plankton also make up the base of the marine food web, providing food for all the trophic levels above. Recent studies have analyzed the marine food web to see if the system runs on a top-down or bottom-up approach. Essentially, this research is focused on understanding whether changes in the food web are driven by nutrients at the bottom of ...