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Hydrozoan refers to a class of small, predominantly marine animals within the phylum Cnidaria, which also includes jellyfish and corals. They are characterized by their polyp and medusa life stages, often exhibiting a colonial lifestyle. Hydrozoans can be found in various aquatic environments and are known for their diverse forms, including both solitary and colonial species. Examples include the common Portuguese man o' war and the hydra.
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What does zooid mean?
one of the distinct individuals forming a colonial animal such as a bryozoan or hydrozoan
Is a jellyfish a hydrozoan cnidarian?
no
What is the larval stage of a hydrozoan?
planula
What are examples of cnidaria?
hydrozoan, coral, anemone, jellyfish
Are hydroid hydra jellyfish and portuguese man of war all examples of hydrozoan cnidarian?
yes
Can jellyfish form buds?
Yes; some hydrozoan jellyfishes can reproduce asexually by gemmation (with buds) and by direct scission.
Which coelenterate is called Portuguese man of war?
(Portuguese) man of war is Physalia physalis, a siphonophore hydrozoan. Or, a jellyfish.
What are some types jellyfish found in freash water?
Some hydrozoan, aka hydromedusae, are found in fresh water.
Does a Portuguese man-o-war sting?
yes. A Portuguese man-of-war is a large hydrozoan, having an aerial float and long stinging tentacles.
A hydrozoan that is actually a colony of four types of special polyps that depend each other for survival?
This hydrozoan is likely a "Portuguese Man o' War" (Physalia physalis). It consists of gas-filled float, feeding polyps, reproductive polyps, and defensive polyps. Each polyp performs a specific function that contributes to the overall survival of the colony.
What kind of animal is a gonionemus?
Gonionemus refers to a genus of hydrozoan; it is a jellyfish that inhabits the waters off of northern Japan and Russia as well as the waters off of the Aleutian Islands and northern California.
What is a large and dangerous hydrozoan?
A large and dangerous hydrozoan is the Portuguese man o' war (Physalia physalis), often mistaken for a jellyfish. It possesses long, venomous tentacles that can deliver painful stings to humans and can cause severe allergic reactions or even be life-threatening in some cases. The creature floats on the surface of the ocean with its gas-filled bladder, making it difficult to spot, and its tentacles can extend up to 30 meters long. Though not a true jellyfish, it belongs to the class Hydrozoa and is known for its striking, translucent appearance.
