Food chain: A sequence of organisms, each of which uses the next, lower member of the sequence as a food source.
Food web: The complex intermeshing of individual food chains in an ecosystem.
Forbay: The water behind a dam.
food chain
Sequence of transfer of matter and energy in the form of food from organism to organism in ascending or descending trophic levels.
Food Chain: A sequence of organisms, each of which uses the next, lower member of the sequence as a food source.
Food Processing Waste: Food residues produced during agricultural and industrial operations.
food chain Animals linked together by the succession of food sources and all dependent , in the long run, on plants.
food web See food chain. Implies many cross connections to the food chain rather than straight-line connections.
Food chain is the sequence of organisms usually beginning with plants, that successively depend on each other for food, the chain shows the direction of the flow of energy between organisms ...
Food Chain
The transfer of energy from the source in plants through a series of organisms with repeated eating and being eaten. At each transfer, a large proportion of the potential energy is lost as heat.
F food chain
Definition (english only)
Sequence of organisms each of which uses the next lower member of the sequence as a food source.
Some Fast Food Chains Offer Vague Policies on Waste Reduction
Both McDonald's and PepsiCo (owner of KFC and Taco Bell) have crafted internal policies to address environmental concerns.
Maximal food chain A sequence of species running from a basal species (plant) to another species that feeds on it and so on to a top predator (fed on by no other).
accumulate in the food chain.
hectare (HECK-tar). A measure of area in the metric system
similar to an acre. One hectare is equal to 10,000 square ...
Chlorinated Hydrocarbons These include a class of persistent, broad-spectrum insecticides that linger in the environment and accumulate in the food chain.
Food chain:transfer of food energy from one organism to another. It begins with a plant species, which is eaten by an animal species; it continues with a second animal species, which eats the first, and so on.
They can damage living things at low concentrations and tend to accumulate in the food chain.
hectare (HECK-tar). A measure of area in the metric system similar to an acre. One hectare is equal to 10,000 square meters and 2.4711 acres.
All animals are consumers, since they consume food in the food chain, produced by the plants. People also fall in the consumer category. This is, however, not what is generally meant by referring to consumerism within the human society.
food chain a way of showing how nutrients and energy pass from producers through the various trophic levels in an ecosystem, such as from producers to herbivores, carnivores, and finally decomposers
food pyramid see trophic pyramid ...
Since they are very low on the food chain, they are vital to all marine life. They are also vital to the atmosphere in that they consume large amounts of carbon dioxide, which contribute to enhanced global warming when excess amounts are present.
An important health effect of environmental damage and contamination in the food chain has meant a growing tendency to replace wild meat and other country food with store bought products that are less nutritious.
UV rays can go through water and end up killing small water animals or plants, called 'plankton' which form the base of the food chain in oceans and seas.
Refers to the process whereby certain substances such as pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, ...
These include a class of persistent, broad-spectrum insecticides that linger in the environment and accumulate in the food chain. Among them are DDT, aldrin, dieldrin, heptachlor, chlordane, lindane, endrin, Mirex, hexachloride, and toxaphene.
Biological Magnification: Refers to the process whereby certain substances such as pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, ...
Further they concentrate in the food chain. A beluga whale accumulates so much PCB from eating PCB-contaminated fish, its corpse must be treated as toxic waste. Circa 1979, I worked at BC Hydro Research labs.
Trophic level A level in the food chain. The first trophic level consists of the primary producers, autotrophs. The second trophic level is vegetarians which consume autotrophic organisms.
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producers: The producers are at the bottom of the food chain, making their own food through photosynthesis and providing food for all the herbivores (plant-eating animals).
Hydrocarbons that contain chlorine. These include a class of persistent insecticides that accumulate in the aquatic food chain. Among them are DDT, aldrin, dieldrin, heptachlor, chlordane, lindane, endrin, Mirex, hexachloride, and toxaphene.
These include a class of persistent insecticides that accumulate in the aquatic food chain. Among them are DDT, aldrin, dieldrin, heptachlor, chlordane, lindane, endrin, Mirex, hexachloride, and toxaphene.
Aside from representing the bottom few levels of a food chain that supports commercially important fisheries, plankton ecosystems play a role in the biogeochemical cycles of many important chemical elements, including the ocean's carbon cycle.
Biomagnify-the tendency of a substance to increase in concentration as it proceeds up the food chain from prey to the top consumer.
Pesticide: A substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest. Pesticides can accumulate in the food chain and/or contaminate the environment if they are misused.
Heavy Metal
A common hazardous waste; can damage organisms at low concentrations and tends to accumulate in the food chain. ...
Biomagnification (biological magnification): A cumulative increase in the concentrations of a persistent substance in successively higher levels of the food chain.
Not all contaminants are easily treated through the use of bioremediation; for example, heavy metals such as cadmium and lead are not readily absorbed or captured by organisms. The integration of metals such as mercury into the food chain may make ...
A group of elements (such as chromium, lead, copper and zinc) that can be toxic at relatively low concentrations and tend to accumulate in the food chain..
Heptachlor ...
heavy metals. Metallic elements with high atomic weights, e.g., mercury, chromium, cadmium, arsenic, and lead. They can damage living things at low concentrations and tend to accumulate in the food chain.
 See also: Water, Environment, Waste, Environmental, Soil
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