Which term refers to tiny organisms floating in the water?

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Study for the Freshwater Ecology Test. Engage with flashcards and multiple choice questions, each question has hints and explanations. Prepare comprehensively for your exam!

Multiple Choice

Which term refers to tiny organisms floating in the water?

Explanation:
Floating, drifting in the water, are called plankton. They are typically too small or not strong enough swimmers to maintain position against currents, so they float or drift with the water column. This distinguishes them from nekton, which actively swim and can move around despite currents. Neuston refers to organisms that live at the air–water interface, not throughout the water column, and epilimnion is simply the upper warm layer of a stratified lake, not an organism. So the term that best describes tiny organisms floating in water is plankton.

Floating, drifting in the water, are called plankton. They are typically too small or not strong enough swimmers to maintain position against currents, so they float or drift with the water column. This distinguishes them from nekton, which actively swim and can move around despite currents. Neuston refers to organisms that live at the air–water interface, not throughout the water column, and epilimnion is simply the upper warm layer of a stratified lake, not an organism. So the term that best describes tiny organisms floating in water is plankton.

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