Question

Write scientific classification of jellyfish? Give characteristics of it?

Answer 1

Jellyfish

Phylum-cnidaria

Informal grouping of animals in Medusozoa

Pacific sea nettle (Chrysaora fuscescens)

including

Scyphozoa — true jellyfish

Cubozoa — box jellyfish

Staurozoa — stalked jellyfish

some Hydrozoa — small jellyfish

Jellyfish or sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are not mobile, being anchored to the seabed by stalks. The bell can pulsate to provide propulsion and highly efficient locomotion. The tentacles are armed with stinging cells and may be used to capture prey and defend against predators. Jellyfish have a complex life cycle; the medusa is normally the sexual phase, the planula larva can disperse widely and is followed by a sedentary polyp phase.