(D) Animals that live on the bottom of a body of water,such as an ocean,lake,or stream,are collectively known as $Benthos$.$Plankton$ are organisms th

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(D) Animals that live on the bottom of a body of water,such as an ocean,lake,or stream,are collectively known as $Benthos$.$Plankton$ are organisms that drift or float in the water column.$Nekton$ are organisms that can swim actively against water currents.$Tripton$ refers to non-living particulate matter suspended in water.