This is because toxins are ingested by organisms and accumulate in the fatty tissues. Theses toxins then become more concentrated in successive trophic levels of a food web biological magnification. Magnification occurs because the biomass at any given trophic level is produced from a much larger biomass ingested from the level below and therefore, top-level carnivores tend to be the organisms most severely affected by toxic compounds.
Gravitational potential energy
The amount<span> of guanine </span>always equals the amount of cytosine<span>.
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The answers are photosynthesis, respiration, decomposition, natural rock weathering and fossil fuel combustion.
