1.

Name the organisms which utilizes complex substances and break down to simpler forms.

Answer» The organisms which utilize complex substances and break them down into simpler forms are called heterotrophs. After taking complex organic materials as food, heterotrophs break them into simpler molecules with the help of biological catalysts, or enzymes, and utilise them for their own metabolism. Depending on the mode of living and the mode of intake of food, heterotrophs may be parasitic, saprophytic or holozoic.
The organisms which utilize complex substances and break them down into simpler forms are called heterotrophs. After taking complex organic materials as food, heterotrophs break them into simpler molecules with the help of biological catalysts, or enzymes, and utilise them for their own metabolism. Depending on the mode of living and the mode of intake of food, heterotrophs may be parasitic, saprophytic or holozoic.


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