Do echinoderms have a nervous system? Do amphibians have scales made of keratin? Do nematodes have tissues? Do members of the phylum Crustacea have chela? Do nematodes have a complete digestive system? When did the radula develop in the phylum Mollusca?
They are bilaterally symmetrical with a complete digestive tract. Their body is covered by a hood-like structure called the mantle. This mantle creates a pocket between the body of the animal and the hood. Gills are present in this mantle cavity. What type of symmetry do jellyfish have? The...
Already stressed by habitat destruction, decades of poaching, and climate change, sea turtles are at particular risk from plastic bags, as they oftenmistake them for jellyfish– a popular food for many sea turtle species. In fact, researchers from the University of Queensland recently determined t...
Is a jellyfish a medusa or polyp? Jellyfish havea stalked (polyp) phase, when they are attached to coastal reefs, and a jellyfish (medusa) phase, when they float among the plankton. The medusa is the reproductive stage; their eggs are fertilised internally and develop into free-swimming p...
Keywords: Lebrunia neglecta;Anthopleura dowii;proteome;crude venom extract;enzymes;sea anemone