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Question
A food chain consists of fish, larvae, phytoplanktons and birds. The level of pesticides in water in which the fish, larvae and phytoplanktons live is quite high.
(a) In which organisms the pesticides enter from the polluted water? What is this level of organisms known as?
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Solution
The pesticides enter the phytoplankton from the polluted water. This level of organisms is known as producers.
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