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How do pesticides become accumulated along the food chain?
When pesticides are sprayed into stagnent pools of water, either by accident or on purpose, small larvae eat the pesticide. Then it gradually travels up the food chain by predators eating their prey.
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Bioaccumulation is a process by which chemical substances areingested and retained by organisms, either from the environmentdirectly or through consumption of food containing …the chemicals.. Biomagnification is a cumulative increase in the concentration ofa persistent substance in successively higher levels of the foodchain.. Bioconcentration refers to the cumulative effects ofbioaccumulation and biomagnification.
Yes, as the pesticide affects the primary consumer it will affect all the other consumers after that. It will especially affect the top consumer, (the carnivore) as the…y will not have anything to feed on as they have been killed by the pesticides. Hope this helps!
Because when an animal eats a pesticide, it stays in there body forever, so when another animal eats that animal, they have now gained the pesticide.
They accumulate as you move up the food chain because,They travel from organism to organism.For example,it may enter a food chain when it's absorbed by a plankton,and the poll…utant is passed on to which ever organism eats the plankton,and it keeps on going on. By The Way,the person who just answered this is in gr.7 my name is ar$h!
There are a couple of main routes: * A bug would absorb the pesticide, and be eaten (before or shortly after death) by a bird or other insectivore. That animal would then… absorb whatever of the pesticide the bug hadn't metabolised or ejected. From there, it would be passed on through the food chain as normal, the amount of poison transferred lowering bit by bit - assuming that no animals in the chain ate any more infected bugs or plants, as below. * A plant may absorb the chemicals from the ground or air, following its release. The plants may be eaten by bugs and insects and follow the above course, or they may be eaten by herbivores like cattle and sheep. There on, same as usual; some gets broken up, some gets tossed out, but some carries on to whatever eats the herbivore, and some again to whatever eats that predator. Either way, the pesticide is passed on like every other chemical in a food chain; part is used by the animal at each stage, part is excreted as waste (possibly to rejoin the cycle later) and part is then consumed by the next stage. And so on ad nauseam or until all of the poison is destroyed or altered.
Pesticides affect the food chain because even the smallest bacteria or producer can absorb the pesticides and as you continue up to the food chain to the consumer or herbivore… (veggie eater) or carnivore (meat eater), they have absorbed many amounts of pesticides because they have eaten other producers that have absorbed the pesticides. Pesticides are toxic chemicals that can cause mutations along with birth defects and can even cause cancer. They can also poison an entire ecosystem.
Three things are possible * They get oxidized (in the broad sense of the word) and lose their particular chemical character * They dissipate to non-toxic levels… as the come in contact with more environment. * They become more concentrated if they have an affinity for particular organs or environments.
Consequences of pesticides entering the food chain are the extinction or endangering of animals and the spread of harmful diseases to other animals and humans.
Because the animal uses so much of the energy it only saves a little bit and that's the energy we get from food
b/c animals in which the birds are eating are being affected by the pesticides which kills them. If the animals at the lower part of the food chain start to grow extinct then …there will be no more food for the animals at the top of the food chains which means they will more than likely die off or become extinct
Humans put pesticide on the plants. Insects then eat the plant and become sick, but may not die right away. They may scuttle, fly, crawl, or however they move away, only to ge…t eaten by something else, which gets eaten by something else, so on and so forth. OR, a herbivorous creature may eat your plant and then that gets eaten, etc. etc.
Explain what is meant by the statement The amount of food energy passed along grows smaller and smaller as the chain becomes longer?
That statement is talking about a food chain and the amount of available energy: The most energy is available at the producer level. A producer is a plant that gets energ…y from the sun. The producer is able to make lots of energy by photosynthesis. Then the producer gets eaten by a first-level consumer. This is typically an herbivore (something that eats only plants) but could also be an omnivore (something that eats both plants and meat). Either way, when the first-level consumer eats the producer, it uses most of the energy for its life processes. Life processes are things like growing, having energy to go find more food, reproducing, and caring for young. Surplus energy is stored in the form of fat. This first-level producer gets eaten by a second-level consumer. This might be a carnivore (something that eats only meat) or another omnivore. The second-level consumer can only get the stored energy from its food. This means that there is less energy available to it than there was to the first-level consumer. This chain continues, with less and less energy being available at each step. Because of this fact, there needs to be many producers and low level consumers to support the higher level consumers.
Because energy is lost as you move up a food chain, more organisms must be consumed in each successive level to maintain the level of energy necessary to biological processes.… For example, say a grasshopper has to eat one blade of grass in order to gain the requisite energy and there are 10 drops of DDT on each blade of grass. This means each grasshopper has 10 drops of DDT. Now a bird has to eat 10 grasshoppers in order to obtain the right amount of energy so each bird now has 100 drops of DDT, and so on as you proceed up the food chain.