What is Nervous System

Nervous-System-feature

Explore the central nervous system (CNS), comprising the brain and spinal cord, and its role in coordinating body activities. Understand the structure, function, and interconnectedness of the CNS and peripheral nervous system. Learn about CNS-related diseases and their impact on thought, movement, and overall health

Phylum Coelenterata/Cnidaria

This tutorial provides an overview of Phylum Coelenterata/Cnidaria, including their definition, symmetry, and unique characteristics. It covers the different classes of Cnidaria, such as jellyfish, corals, and sea anemones, and their role in marine ecosystems.
These are the aquatic animals with multicellular organization, radial symmetry, and are diploblastic. The body cavity of these organisms is called enteron. They have a sac-like digestive system. The two basic body forms in cnidaria are medusae – the umbrella-like free-swimming organisms involved in sexual reproduction like jellyfish and polyps – the cylindrical sessile organisms of nutritive importance like the hydra.