Jellyfish (Scyphozoa)

Jellyfish (Scyphozoa) are fragile, delicate bodied creatures. They are spineless creatures jellyfish
have no bones, exoskeleton, or shell to ensure or bolster them. Rather, the water in which they live gives their body the basic bolster it requires. On the off chance that a jellyfish is expelled from water or is washed aground, it crumples and passes on.

Jellyfish are Cnidaria, a gathering of creatures that additionally incorporates corals, hydras, and ocean anemones.

Cnidaria are all radially symmetrical. Their body parts are generally symmetrical when seen around a focal hub. Jellyfish have no left or right side, when seen side-on, they appear to be identical from each edge.

The highest point of the jellyfish is alluded to as the ringer. The state of the chime shifts from species to species, with a few species having round chimes and others having level or oval formed ringers. The chime comprises of an external layer of cells known as the epidermis. The mouth of a jellyfish is situated on the underside of the ringer and opens into a gastrovascular cavity inside the chime. The gastrovascular pit is lined with a layer of cells known as the gastrodermis. Between the epidermis and the gastrodermis is the mesoglea, a jam like substance that gives the jellyfish quite a bit of its mass and shape.

Jellyfish have thin arms that develop from the base edge of the ringer. The number and size of these appendages changes from species to species. Jellyfish likewise have four (or in a few animal groups, eight) oral arms that trail from the jellyfishes' mouth.

Jellyfish have an unpredictable life cycle all through which they tackle various diverse structures. The predominant (and most recognizable structure) of jellyfish is the medusa. At the same time, there are a few different structures including planula, polyp, and ephyra shapes.

Jellyfish are carnivores. They eat zooplankton, little fish, and spineless creatures. At the point when clueless fish or other little ocean animals gets to be snared in the jellyfish arms, particular cells inside the tenticals called cnydocites fire little spikes and strings (which are contained in organelles alluded to as nematocysts) into their prey. These strings enter the skin of the victimized person and convey venom which immobilizes the creature. The jellyfish then uses its oral arms to convey the prey to its mouth and ingest it.

Jellyfish live in seas all through the world. Most jellyfish live in marine situations, a couple of species occupy saltwater lakes. All types of jellyfish that are said to be freshwater abiding are indeed Hydrozoans (not Scyphozoans). Some jellyfish lean toward warm, tropical waters while different species have a tendency to favor chilly, cold or antarctic waters.

Jellyfish live in numerous maritime zones, from shallow inshore waters close coastlines, to vast sea. They make due at an assortment of profundities, a few species possess the top level of water while others occupy darker, more profound profundities. A couple of animal varieties move between profundities, rising up to the top amid the day and dropping to the profound amid the night.

Grouping:

Kingdom: Animalia

Phylum: Cnidaria

Class: Scyphozoa

The Class Scyphozoa contains the accompanying subgroups:

Request: Coronatae (crown jellyfishes)

Request: Rhizostomatida

Request: Rhizostomeae

Request: Semaeostomeae

Request: Stauromedusae (stalked jellyfishes).