Linear density. Linear density is the measure of a quantity of any characteristic value per unit of length. Linear mass density (titer in textile engineering, the amount of mass per unit length) and linear charge density (the amount of electric charge per unit length) are two common examples used in science and engineering.
Gastrovascular system of the flatworm Dugesia, colored yellow. The gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Cnidaria (including jellyfish and corals) and Platyhelminthes (flatworms). The cavity may be extensively branched into a system of canals.In cnidarians, the gastrovascular system is also known as the coelenteron, and is commonly known as a blind gut or blind sac, since food enters and waste exits through the same orifice.astrovascular system of the flatworm Dugesia, colored yellow. The gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Cnidaria (including jellyfish and corals) and Platyhelminthes (flatworms). The cavity may be extensively branched into a system of canals.
A. Cnidarians have a circulatory system. B. All cnidarians are carnivorous predators. C. All cnidarian life cycles include both polyp and medusa stages.D. They have bilateral symmetry.E. They have a complex nervous system. Add your answer. Source. Submit Cancel.. All cnidarians are carnivorous predators. C. All cnidarian life cycles include both polyp and medusa stages. D. They have bilateral symmetry. E. They have a complex nervous system. Add your answer. Source. Submit Cancel.