Organized groups of cells (plus their intercellular substances) that have a common purpose form a(n) ________. Naim 02:02 Tissue The Living Fabric Organized groups of cells (plus their intercellular substances) that have a common purpose form a(n) ________. A) organ B) tissue C) organism D) organ system Answer: B) tissue Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+