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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.
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One of the forms of asexual reproduction is budding reproduction.
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When the nutrient conditions are good and the water temperature is suitable, the hydra undergoes budding and reproduction.
The process of budding reproduction is as follows: first a bud body similar to the mother body is formed on the body wall of the mother, and the bud body leaves the mother body when it grows up to form an independent new individual.
When there is less food and the water temperature is lower, the hydra undergoes sexual reproduction. Therefore, when the nutritional conditions of the hydra are good, the reproductive mode of the hydra is to bud and reproduce in a certain part. Sexual reproduction is carried out in poor nutritional conditions.
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<> hydra is a coelenterate with a cylindrical, brown body with tentacles around the mouth, a tool for predation, and a cavity in the body. So what is the reproductive mode of hydra? <
The mode of reproduction of the hydrophore is asexual reproduction and budding reproduction. Generally, it is bred twice a year, in early spring and late autumn, if it is raised in captivity by changing the water temperature to cause the development of ovaries and sperm nests of the water year, and promote its sexual reproduction.
Most hydroids are hermaphroditic and have a strong reproductive capacity.
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Asexual reproduction is usually performed.
Hydra is a class of multicellular animals with a simple structure and belongs to the coelenterates.
When the nutrient conditions are good and the water temperature is suitable, the polyp carries out budding reproduction, and forms a bud body similar to the mother on the body wall of the mother, and the bud body leaves the mother body after growing up, forming an independent new individual, when the food is less and the water temperature is low, the polyp carries out sexual socks skillful breeding, so when the polyp has good nutritional conditions, the reproductive mode of the polyp is to bud reproduction in a certain part of the sexual reproduction in poor nutritional conditions.
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When the nutrient conditions are good and the water temperature is suitable, the process of budding reproduction is: first form a bud body similar to the mother on the body wall of the mother, and the bud body leaves the mother body after growing up, forming an independent new individual When there is less food and low water temperature, the hydra carries out sexual reproduction So when the hydra is in good nutritional conditions, the reproductive mode of the hydra is to bud reproduction in a certain part of the sexual reproduction in poor nutritional conditions
So the answer is: teething reproduction; Sexual reproduction
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