Which term refers to a device used to collect plankton from seawater?

Which term refers to a device used to collect plankton from seawater?

• A. Plankton Net
• B. Sea Grass
• C. Rhodophyta
• D. Zooplankton

Answer: (A)

A plankton net is the device used to collect plankton from seawater. To sample, the net is towed through the water so that water flows into the opening and tiny organisms are trapped by the mesh while the rest passes through. Different mesh sizes let scientists target different size ranges of plankton, and a cod end or bottle concentrates the sample for analysis. The other terms describe living things or habitats rather than equipment: sea grass is marine vegetation, Rhodophyta are red algae, and zooplankton are the drifting animals that might be collected with nets but are not the sampling device itself.

A plankton net is the device used to collect plankton from seawater. To sample, the net is towed through the water so that water flows into the opening and tiny organisms are trapped by the mesh while the rest passes through. Different mesh sizes let scientists target different size ranges of plankton, and a cod end or bottle concentrates the sample for analysis. The other terms describe living things or habitats rather than equipment: sea grass is marine vegetation, Rhodophyta are red algae, and zooplankton are the drifting animals that might be collected with nets but are not the sampling device itself.