What is the structure of Obelia?
Structure of Obelia
It takes two forms throughout its life cycle — polyp and medusa. The first form is diploblastic, which has two true tissue layers — an epidermis and a dermis (ectodermis). The second form is gastrodermis (endodermis), which has a jelly-like mesoglia filling the space between the two tissue layers.
What are the characteristics of Obelia?
Structure. Through its life cycle, Obelia take two forms: polyp and medusa. They are diploblastic, with two true tissue layers—an epidermis (ectodermis) and a gastrodermis (endodermis)—with a jelly-like mesoglea filling the area between the two true tissue layers. They carry a nerve net with no brain or ganglia.
Is Obelia a plant or animal?
Obelia, genus of invertebrate marine animals of the class Hydrozoa (phylum Cnidaria). The genus, widely distributed in all the oceans, is represented by many species. The animal begins life as a polyp—a tentacled, stalklike form resembling a small sea anemone attached to the ocean bottom or some other solid surface.
What is the common name of Obelia?
sea fur
The scientific name of obelia is obelia (though it has many species with different names), and obelia’s common name is sea fur as it forms a light-brown or whitish plant-like fur in the seas. The distribution of obelia is cosmopolitan except for Antarctic seas and high-arctics.
What classification is Obelia?
HydrozoansObelia / Class
What is the order of Obelia?
LeptothecataObelia / Order
What does Obelia feed on?
The medusae of most Obelia species do not grow well on a diet of Artemia salina nauplii, the usual food for laboratory-reared hydrozoans, and their rearing is often difficult. Previous observations reported that Obelia medusae might eat phytoplankton, driven to the mouth by movements of both the bell and the tentacles.
How do Obelia reproduce?
Through filaments, Obelia attach to various surfaces, most often the ocean floor, but sometimes seaweed, shells or wharves. Reproduction of Obelia in this life stage occurs by budding, new polyps growing and breaking away to become members of the increasingly larger colony.
What is the family of Obelia?
CampanulariidaeObelia / Family
What kingdom is Obelia?
AnimalObelia / Kingdom
How do you identify Obelia?
[Obelia-medusa] Umbrella flat, with velum minute or lacking (authorities differ). Stomach short, with quadrangular base, without peduncle; mouth with four short simple lips. Radial canals four, straight; they and ring canal narrow, the latter hard to discern.