Organs and Organ Systems

All animals, not including _________humanssingle-celled organismsmotorbikesamphibians, are made up of different organs. Organs are made up of different _________tissuesanimalshandkerchiefsorgans, which in turn are made up of many _________professional cellssmaller organsbacteriaspecialized cells.

_________IdenticalFriendlyDifferentdifferent organs working together in a group make up an organ system. Examples of organ systems are _________cats and dogsthe circulatory system and the respiratory systemthe stomacular system and the brainal systemthe left system and the right system.

Several organ systems working together make up _________a storya plantan organ societyan organism.