If a cnidarian lost its stinging cells, it would lose its primary defense mechanism against predators and its ability to capture prey. This would make the cnidarian more vulnerable to predation and reduce its efficiency in obtaining food.

Cnidarians belong to the Kingdom Animalia. They are characterized by their radial symmetry, tentacles with stinging cells called cnidocytes, and a simple nerve net.

Cnidarians have specialized stinging cells called cnidocytes, which contain nematocysts. Nematocysts are capsule-like structures that can discharge venomous barbs or threads when triggered, allowing cnidarians to capture prey or defend themselves.

Examples of cnidarians include jellyfish, corals, sea anemones, and hydroids. Cnidarians are characterized by their radial symmetry and specialized stinging cells called cnidocytes that they use to capture prey.

Hydras are small aquatic organisms that are typically consumed by larger predators, such as fish, turtles, and birds. Additionally, some invertebrates like crustaceans and other aquatic insects may also feed on hydras.

They have a mouth/anus and that is it.

One can buy the Coach purse called the Legacy Leather Mini Tanner Crossbody Bag in bright coral from the Coach website. One could also buy this purse from Nordstrom.

They are a special type of ectotherm called a poikilotherm meaning they have the same body temperature as their ambient surroundings.

A hydranth (feeding polyp) will have a hypostome, mouth and tentacles. A gonangium (reproductive polyp) will have medusa buds and gonotheca. The medusa buds will become free swimming Medusa to sexually reproduce by the female releasing an egg and the male releasing haploid sperm. After fertilization, the zygote develops into a ciliated, swimming planula larva which will settle to the ocean floor attaching itself to the substrate. A new generation of polyps then begins to form through asexual budding.

In the lava

No, a hydra doesn't have blood. It is a single-cellular animal.

It has a single layer of cell.

Lay a paper on a flat surface. With your hands on the surface, push two sides together until you make something that looks like a polyp. Voila! Something similar to a crosssection of a sponge. Think of the paper as cells in a single line.

The old name is coelenterate.

Phylum Cnidaria

by puting it back out their mouths

Cnidaria.

true

Cnidarians and sponges receive most of their food from filtering water; they would starve without water. Also, they would most likely crush themselves because of their body weight if they were on land.

cnidarians are multicellular

the new bud simply detaches from the parent body

i think a hydra has a incomplete digestive system called the-gastrovascular system

The parents are Echidna and Typhon

They are filter feeders that draw water into their pores, filter out tiny sea invertebrates that are absorbed and digested, and expel the remaining water in a continuous basis.

Medusae and complex swimming colonies can sense tilt and acceleration by means of chambers lined with hairs which detect the movements of internal mineral grains. If the body tilts in the wrong direction, the animal rights itself by increasing the strength of the swimming movements on the side that is too low. They also have "little eyes" known as ocelli, which can detect the direction from which light is coming. Although these probably do not form images, their lenses simply produce a clearer indication of the direction from which light is coming.

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I have to add that most species of box jellyfish have four groups of two complex eyes, and either two or four simpler ocelli, for a total of up to twenty four eyes. The complex eyes are similar to our own and have corneas, lens, and retinas. Tests have demonstrated their ability to navigate obstacles and recognize colors by way of their vision, although it has yet to be demonstrated that they can track prey. Their nervous system is not centralized, but it is a much more complex nerve net than other species of jellyfish. So far, some primitive learning and memory ability has been demonstrated in experiments.