Planktonic organisms keep their buoyancy despite being denser than the surrounding waters because the organism stores oil, which has a lower density than water, in its body to decreases its overall density
They are less dense than the water so they float.
Anything, like plankton, that is less dense than the surrounding water cam float.
Yes, they usually stay in groups, though they can't control that since plankton can't swim.
plant planktons
they feed on planktons. The planktons which serve as their food filters the water that enters to a porifera's pores and this microorganisms (planktons) serve as their food.
Holoplankton and meroplankton are types of planktons found in the oceans. Holoplankton are planktons for their entire lives, while meroplanktons are planktons for only part of their lives.
Planktons
Planktons.
planktons
Planktons
planktons
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Planktons and Zooplanktons
invertibrates