No, plankton are single celled organisms that only live underwater.
Lungs are only present in some multicellular organisms that breathe air, specifically vertebrates (many multicellular organisms that breathe air like insects do not have lungs).
No they don't. They are very simplistic organisms :]
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
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planktons
Planktons
Planktons and Zooplanktons
invertibrates
Some zooplankton do.