What makes a hydrozoa a hydrozoa?
Description: Hydrozoa consist of several marine organisms existinting in all three layers of the marine habitat. Another sessile Hydrozoa is the Hydra which is truely unique among the Hydrozoans. The Hydra is solitary, lacks a medusoid phase and feeds with long tentacles that extend from around the mouth.
What is a Hydrozoan jellyfish?
Hydrozoa is a taxonomic class of very small, predatory animals which can be solitary or colonial and which mostly live in saltwater. A few genera within this class live in freshwater. These organisms are related to jellyfish and corals and belong to the phylum Cnidaria.
Are Hydroids Medusa?
Beautiful and dangerous at the same time, the Hydroid Medusa is a cybernetically enhanced biological weapon developed by the Karkarodons of Karkaris. These immense jellyfish incorporate armor and powerplants that turn them into near-unstoppable engines of underwater destruction.
What animals belong to hydrozoa?
Some examples of hydrozoans are the freshwater jelly (Craspedacusta sowerbyi), freshwater polyps (Hydra), Obelia, Portuguese man o’ war (Physalia physalis), chondrophores (Porpitidae), “air fern” (Sertularia argentea), and pink-hearted hydroids (Tubularia).
Where are hydrozoa found?
Most hydrozoans are marine, and hydrozoan species are found in nearly every marine habitat type; a very few species live in freshwater. Most hydrozoans form colonies of asexual polyps and free-swimming sexual medusae. Colonies are usually benthic, but some, notably the siphonophores, are pelagic floaters.
Is a Portuguese Man O War a solitary Hydrozoan?
The Portuguese man o’ war is a highly venomous open ocean predator that superficially resembles a jellyfish but is actually a siphonophore. Each man o’ war is actually a colony of several small individual organisms that each have a specialized job and are so closely intertwined that they cannot survive alone.
Is Caravela Portuguesa dangerous?
It has numerous venomous microscopic nematocysts which deliver a painful sting powerful enough to kill fish, and has been known to occasionally kill humans. Although it superficially resembles a jellyfish, the Portuguese man o’ war is in fact a siphonophore.
Is the Portuguese Man O War endangered?
Is The Portuguese Man O’ War Endangered? The Portuguese man o’ war is not rated by the IUCN. The species is not thought to be threatened.
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