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A food web is a graphical representation of what-eats-what in an ecological community, showing the connections among autotrophs and heterotrophs. Learn about the history, patterns, and types of food webs, and see diagrams and videos of different food chains and trophic levels.
Learn how energy flows through living things in an ecosystem, from producers to consumers, and how it is affected by thermodynamics, efficiency, and productivity. Find out the difference between aquatic and terrestrial ecosystems, and the role of chemosynthesis and detritus in energy flow.
Learn about the structure and function of marine food webs, which are networks of trophic interactions among marine organisms. Find out how phytoplankton, zooplankton, fish, mammals and other species are linked by food chains and trophic levels.
A food chain is a linear network of links in a food web, starting with a producer and ending with a consumer or decomposer. Learn about the history, types, models, and studies of food chains, and how they relate to energy transfer and ecosystem dynamics.
Decoupage is the art of gluing colored paper cutouts onto an object, often with varnish and other elements. Learn about its origins, techniques, styles, and notable decoupeurs from history and modern times.
The soil food web is the community of organisms living in the soil and how they interact with the environment and plants. Producers are autotrophs that make their own energy, such as plants, while consumers are heterotrophs that eat other organisms or organic compounds.
An ecosystem is a system of organisms and their environment that interact through nutrient cycles and energy flows. Learn about the origin, development, classification, goods and services, threats and restoration of ecosystems from Wikipedia.
Learn about abiotic components or factors, which are non-living parts of the environment that affect living organisms and ecosystems. Find out examples of abiotic factors, such as water, temperature, light, and pressure, and how they influence biology and ecology.