Hydra (genus) - Wikipedia
Hydra (/ ˈhaɪdrə / HY-drə) is a genus of small freshwater hydrozoans of the phylum Cnidaria.
Hydra | Freshwater, Cnidaria, Polyp | Britannica
Aug 23, 2024 · Hydra, genus of invertebrate freshwater animals of the class Hydrozoa (phylum Cnidaria). The body of such an organism consists of a thin, usually translucent tube that measures up to about 30 millimetres (1.2 inches) long but is capable of great contraction.
Hydra Biology Classification, Characteristics and Reproduction
Hydra are a genus of small, fresh-water organisms that are classified under the phylum Cnidaria. In addition to being related to such organisms as jellyfish, they are characterized by their tiny, tube-shaped bodies that contain several tentacles on one end.
Hydra vulgaris - Wikipedia
Hydra vulgaris, the fresh-water polyp, [3] is a small freshwater hydroid with length from 10 mm to 30 mm and width about 1 mm. [4]
Hydra - Animalia
Hydra ( HY-drə) is a genus of small freshwater hydrozoans of the phylum Cnidaria. They are native to the temperate and tropical regions.
Hydra – Biology, Classification, Characteristics, and Reproduction
Hydra is a genus of tiny fresh-water organisms that are classified under the phylum of Cnidaria. Hydra has a cylindrical, radially symmetric body from 2 to 20 mm in length. It is visible to the naked eyes when fully extended.
Hydroid | Characteristics & Life Cycle | Britannica
hydroid, any member of the invertebrate class Hydrozoa (phylum Cnidaria). Most hydroids inhabit marine environments, but some have invaded freshwater habitats. Hydroids may be either solitary or colonial, and there are about 3,700 known species.
Revisiting the age, evolutionary history and species level …
Oct 1, 2015 · The genus Hydra has long served as a model system in comparative immunology, developmental and evolutionary biology. Despite its relevance for fundamental research, Hydra’s evolutionary origins and species level diversity are not well understood.
A chromosome-scale epigenetic map of the Hydra genome …
Jun 28, 2022 · The Hydra single-cell atlas captures the transcriptional signatures of virtually all cell states in an adult polyp, which presents a valuable opportunity to gain new insight into the evolutionary history of the transcriptional programs that define cnidarian cell types.
Hydra- Habit, Habitat, External Morphology, Internal Structures
Aug 3, 2023 · Genus: Hydra. Habit and Habitat. Hydras are solitary, sessile, freshwater animals, cosmopolitan in distribution. They can be found in a large variety of freshwater habitats mostly occur in ponds, lakes, and slow-flowing parts of streams and rivers.
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