Even though jellies can swim, why are they still classified as plankton?

All plant and animal organisms that float or move to a limited extent in water, carried by currents and waves are called plankton.

Explanation:

Jellyfish are on the border of plankton and nekton. They are made of gelatinous tissue in which water makes up 98% of the body's composition. Simple anatomy, they have a single-opening digestive tract and a reticular nervous system.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

c.more precipitation,but only when emission levels.