The NetLogo environment enables exploration of emergent phenomena. The World Wide Web is a popular example of a decentralized system exhibiting emergent properties. In philosophy, theories that emphasize emergent properties have been called emergentism. It is useful to distinguish three forms of emergent structures. Another way in which interactions leads to emergent properties is dual-phase evolution. Unit testing is also critical to the concept of Emergent Design. Vegetation and its characteristics including submerged, floating, emergent, or waterside are also important. They will eat both the leaves and stems of submerged and emergent vegetation. Some forests are characterized by an overstory of emergent trees. The study of CAS focuses on complex, emergent and macroscopic properties of the system. The fauna is similar to that found in the emergent layer, but more diverse. They are now a newly emergent, and increasingly distinct, group of legal professionals. And this is equally true of the synergistic effects produced by emergent systems. In the wake of an emergent industrialization in France, this style expressed innovative individuality. The emergent layer exists in tropical rainforests.