EVERYDAY SCIENCE

SCIENCE

ENVIRONMENTAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which answer best goes with “Bottom-dwelling organism”
A
Pond
B
Benthos
C
Nekton
D
Plankton
Explanation: 

Detailed explanation-1: -Benthos are the organisms that live at the bottom of the Chesapeake Bay and its streams and rivers. The word benthos comes from a Greek term meaning “depths of the sea.” Benthic communities are complex and include a wide range of animals, plants, and bacteria from all levels of the food web.

Detailed explanation-2: -Organisms confined to bottom are called as benthos. Pelagic organisms are differentiated into plankton (microscopic, drifting over surface), neuston (macroscopic, floating, or swimming on or near water surface), nektons (actively swimming inside water).

Detailed explanation-3: -A list of these stuck-on-the-bottom creatures includes sponges, corals, anemones, hydroids, bryozoans, barnacles, oysters, and more.

Detailed explanation-4: -Animals that live on the sea floor are called benthos. Most of these animals lack a backbone and are called invertebrates. Typical benthic invertebrates include sea anemones, sponges, corals, sea stars, sea urchins, worms, bivalves, crabs, and many more.

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