Hydrozoa (hydrozoans; from Ancient Greek ὕδωρ (húdōr) 'water' and ζῷον (zôion) 'animal') is a taxonomic class of individually very small, predatory animals, some solitary and some colonial, …

Hydroid, any member of the invertebrate class Hydrozoa (phylum Cnidaria). Most hydroids inhabit marine environments, but some hydroids have invaded freshwater habitats. Hydroids may be …

2023年10月31日 · Hydrozoa is a class of aquatic invertebrates that are closely related to corals, jellyfish, and sea anemones. They belong to the phylum Cnidaria, which also includes other …

The Hydrozoa is a subgroup of cnidarians containging approximately 3700 species. It is a diverse group with a variety of life cycles, growth forms, and specialized structures. Like many …

6 天之前 · The Class Hydrozoa is the most diverse group of cnidarians. Although marine species vastly outnumber freshwater ones, the genus Hydra may nevertheless be the best known …

Hydrozoa is a diverse and wide-ranging taxonomic class (sometimes superclass) of marine and freshwater invertebrates within the phylum Cnidaria, whose members are characterized by a …

The Hydrozoa are a class of the phylum Cnidaria. They are small predatory animals which mostly live in the sea. Their basic life form is the polyp. Some species live singly, others live in …

2018年5月23日 · Hydrozoa (phylum Coelenterata, class Hydrozoa) are coelenterates that are closely related to the hydra,sea anemones, corals, and jellyfish. Although a large majority of …

Hydrozoa consist of several marine organisms existinting in all three layers of the marine habitat. Some Hydrozoans live on the the surface (velella and Physalia) floating with large sail like …

Hydrozoa (phylum Coelenterata, class Hydrozoa) are coelenterates that are closely related to the hydra, sea anemones, corals, and jellyfish. Although a large majority of these species are …