What is the morphology of the hydra prey digestion movement respiration reproduction like?

Hydra. It belongs to the coelenterate, its form is transparent, has a lot of tentacles, generally lives in clear streams, preys on some toxins on the tentacles, its digestion is relatively simple, and there are some digestive cavities in it. If you move, you don't have eyes, so if you are radiating symmetrically, if you reproduce, you will sprout again.

Hydra is a multicellular invertebrate, food in the digestive cavity of the hydra, there are two digestion methods: intracellular digestion and extracellular digestion Because there are many cells in the endoderm that can secrete digestive juices, the digestive juices secreted by these cells enter the digestive cavity, therefore, the food is extracellularly digested in the digestive cavity At the same time, because there are some cells in the endoderm, the food can be encapsulated in the cells, so the food can also be digested intracellularly The nutrients after digestion are absorbed by the endoderm cells. And the various parts of the body that are transported to the undigestible food scraps, which are still excreted from the mouth to the outside of the body

So the answer is: intracellular digestion; Extracellular digestion.

The body of the hydra can only be divided into upper and lower, and cannot be distinguished from front and back, left and right, and dorsal and ventral. Since hydroids are attached to life, prey may come from all directions and can be caught and defended from all directions.

No, because he is a radiator

Hydra generally reproduces in two ways: usually asexual reproduction (a polyp that sprouts from its body and is preying on Daphnia); There is also sexual reproduction in early spring and late autumn.

1. Hydroids are raised indoors, and if the living conditions are good, especially when feeding live fish and insects, they tend to grow quickly, and often reproduce asexually with budding reproduction. The lower end of the body 1 3 is the budding area, each bud is a small polyp at first, and then its foot disc is closed, detached from its mother, forming a new individual. Under good feeding conditions, the number of maternal buds is large, generally 6 7, up to 18, so many new shoots, often arranged in a spiral shape on the mother.

2. Hydroid sexual reproduction is generally twice a year, the time is in early spring and late autumn, in the process of raising polyids, if the water temperature is artificially changed, such as rising from 15 to 20 or falling from 20 to 15, it can cause the development of polyp ovaries and sperm nests, and promote its sexual reproduction.

Most hydroids are hermaphroditic and have a strong reproductive capacity, often forming ovaries or sperm nests while still budding and reproducing.