Floating organisms that drift with the ocean current and form the base of many food chains are known as. 01:10 Ecosystems and Biomes Floating organisms that drift with the ocean current and form the base of many food chains are known as.A - SeaweedB - SquidC - PlanktonD - AlgaeE - JellyfishAnswer: C - Plankton Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+