You would consider them as benthos because plants don't swim and they are stationary
fish
There are many plants found in the ocean. Some of these plants include kelp, seagrass, red algae, coralline algae, and coral.
Seaweed
Plants found in the Twilight Zone, which is a deep ocean region with limited light, include bioluminescent species like lanternfish. Other common plants are phytoplankton and algae that have adapted to low-light conditions. These plants form the base of the food chain in this dark and mysterious ocean region.
there are many undiscovered species of plants in the depths of our ocean so its hard to say exactly the number found
GOOD ONE NIGR
Sure they can,it's the ocean, all kinds of things can live in the ocean.
Marine ciologist
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plants eat plants in the ocean.
plants that live in the ocean. They are living plants.
Yes. Of course. Unicellular plants are found floating on oceans. They are called phytoplanktons.