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Cnidarian Reproduction. Figure below shows a general cnidarian life cycle. Polyps usually reproduce asexually. One type of asexual reproduction in polyps leads to the formation of new medusae. Medusae usually reproduce sexually. Sexual reproduction forms a zygote. The zygote develops into a larva called a planula. The planula, in turn, develops ...
Reproduction of Cnidarians. In general, polyps primarily reproduce asexually by budding, however, some produce gametes (eggs and sperm) and reproduce sexually. Medusae usually reproduce sexually using eggs and sperm. Depending on the species, cnidarians can be monoecious (also called hermaphroditic), with individuals capable of producing both ...
Cnidarians feed through various ways, such as predation, filter-feeding, parasitism, or symbiosis. Most free-swimming cnidarians use cnidocysts to capture prey, while sessile polyps rely on other organisms to contact their tentacles and provide food particles.
Not all cnidarians reproduce sexually, but many species have complex life cycles of asexual polyp stages and sexual medusae stages. Some, however, omit either the polyp or the medusa stage, and the parasitic classes evolved to have neither form.
Most species of cubozoans, hydrozoans, and scyphozoans pass through the medusoid and polypoid body forms, with medusae giving rise sexually to larvae that metamorphose into polyps, while polyps produce medusae asexually. Thus, the polyp is essentially a juvenile form, while the medusa is the adult form.
Cnidarian Reproduction. Figure below shows a general cnidarian life cycle. Polyps usually reproduce asexually. One type of asexual reproduction in polyps leads to the formation of new medusae. Medusae usually reproduce sexually. Sexual reproduction forms a zygote. The zygote develops into a larva called a planula. The planula, in turn, develops ...
Most have life cycles that include two stages: 1. “Sessile” polyp (non-motile – stuck in one spot) 2. “motile” medusa (Free swimming) Aquatic. Figure 1: Diversity of Cnidarians. A. Evolution of Body Plan. Cnidarians have two body plans: Polyp: A sessile form with mouth and tentacles facing upward. Ex. corals, sea anemone)
Cnidarians can reproduce asexually by budding (another organism grows off the main organism, such as in anemones), or sexually, in which spawning occurs. Male and female organisms release sperm and eggs into the water column, and free-swimming larvae are produced.
Coelenterates, also known as Cnidarians, reproduce both sexually and asexually. Here's how: Asexual Reproduction: Coelenterates reproduce asexually primarily through a process called budding. In this process, a small outgrowth, or bud, develops from the parent organism.
Cnidarians reproduce both sexually and asexually. They are classified based on the presence of a specialized cell called the cnidocyte that releases the thin, harpoon-like structure called a nematocyst to attack prey.