no
The free floating body form of cnidarians is called a medusa. Medusae have a bell-shaped body with tentacles hanging down, and they are often seen swimming in the water. Examples include jellyfish and hydromedusae.
adda
Cnidarians, which include jellyfish, corals, and sea anemones, exhibit two primary body forms: the polyp and the medusa. The polyp is a sessile, cylindrical form that attaches to a substrate, while the medusa is a free-swimming, bell-shaped form. Both forms have a gastrovascular cavity for digestion and specialized cells called cnidocytes that contain stinging structures. The life cycle of many cnidarians involves a transition between these two forms.
Cnidarians are segmented into two main classes: Anthozoa (sea anemones and corals) and Medusozoa (jellyfish and hydrozoans), based on their body forms. Anthozoa are generally sedentary, with a polyp body form, while Medusozoa are typically free-swimming with a medusa body form.
Cnidarians have two main body forms: the medusa form, which is free-swimming and umbrella-shaped, and the polyp form, which is stationary and tube-shaped. Medusae have tentacles around the edge and a central mouth, while polyps have a columnar body with tentacles surrounding a central mouth.
The cnidarian body form specialized for swimming is the medusa. Medusas are typically bell-shaped and have tentacles hanging down, allowing them to pulsate and propel themselves through the water. This form is often associated with the adult stage of jellyfish, which are well-known examples of swimming cnidarians. In contrast, the polyp body form is usually sessile and attached to a substrate.
The polyp body form is a cylindrical, sessile stage found in certain cnidarians, such as hydras and sea anemones. It typically has a mouth at the top surrounded by tentacles, which are used for feeding and defense. Polyps are usually anchored to a substrate and can reproduce asexually, often by budding. This form contrasts with the medusa stage, which is free-swimming and often bell-shaped.
The two forms of Cnidarians are the Medusoid or mobile form (e.g. Hydra), and the Polyp or sessile form (e.g. Aurelia).
A bell-shaped cnidarian adapted for swimming is known as a medusa. Medusae have a jelly-like, umbrella-shaped body with tentacles hanging down and are capable of free-swimming movements in the water. They are typically the adult form of cnidarians, with the polyp form being the stationary phase in the life cycle.
No, a free swimming form of a cnidarian is called a medusa. Polyps are typically attached to a substrate and have a cylindrical body with a mouth surrounded by tentacles at one end. Medusae have a bell-shaped body with tentacles hanging down.
It's a "polyp" bro.
The advantage of a medusa body form over the attached polyp form in Cnidarians is increased mobility. Medusas are free-swimming and can move through the water, allowing them to spread and find food more easily. This mobility also facilitates reproduction as medusas can disperse gametes over a wider area.