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Cnidarians
Cnidarians are aquatic animals belonging to the phylum Cnidaria. Common cnidarians include to jellyfish, sea anemones, corals and the Portuguese Man o' War. Questions about all species of cnidarians can be directed here.
669 Questions
They use diffusion to get air through there body walls.
yes it could breath fire and fireballs go to google images search " hydra breathing fire " if you think I'm wrong
Who is better hydra or cerberus?
I think its the Hydra because once if you cut one head two more will grow back , while the Cerberus is only the loyal pet of Hades.
Cnidarians (jellyfish) mostly get eaten by spadefish, sunfish, and loggerhead turtles
What level of organization are the cnidarians?
B for Plato users
but it is a tissue level of organization
Who was Hydra of Greek mythology?
Hydra was a nine-headed serpent that every time you cut off one of it's heads it grows two more in place of it's lost head. Hercules killed this monster by grabbing it's neck while cutting off it's nine heads.
The sac like gut or gastrovascular cavity of cnidarians has?
A) Only one opening: they expel undigested material through the mouth.
The Waratah Anemone is on the rocky waters of Australia
How big is Hydra Pluto's moon?
They think its diameter is between 61 and 167 kilometers. It's hard to get an accurate measurement because it is so small and so far away.
Hydra primarily release carbon dioxide (CO2) as a byproduct of cellular respiration, where they convert glucose and oxygen into energy. Like other aquatic organisms, they also utilize oxygen (O2) from their environment for this process. However, they do not produce oxygen; instead, they contribute to the overall carbon dioxide levels in their aquatic habitats.
What is an example of a cnidarian in which the Medusa body plan dominant form is?
An example of a cnidarian where the medusa body plan is the dominant form is the jellyfish, specifically species like the moon jellyfish (Aurelia aurita). In these organisms, the medusa stage is the sexually reproductive phase, allowing for widespread dispersal and reproduction in the water column. The polyp stage is typically reduced and often occurs in less prominent forms, such as during early life stages.
How is the digestive system of a cnidarian different from a human?
Cnidarians, such as jellyfish and sea anemones, have a simple digestive system with a single opening that serves as both mouth and anus, leading to a central gastrovascular cavity where digestion occurs. In contrast, humans possess a more complex digestive system with a separate mouth and anus, involving a long, tubular gastrointestinal tract that facilitates specialized processes for digestion and nutrient absorption. Additionally, cnidarians primarily rely on extracellular digestion in their gastrovascular cavity, while humans utilize both mechanical and chemical digestion throughout their digestive tract.
