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A tube-shaped body with a mouth surrounded by tentacles typically describes a cnidarian, such as a sea anemone or a jellyfish. In these organisms, the tentacles are equipped with specialized cells called nematocysts, which can deliver stinging cells to capture prey and provide defense. This body plan allows them to thrive in aquatic environments, where they can float or anchor themselves to surfaces.
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Where is the mouth of the jellyfish?
The mouth of a jellyfish is located on its underside, at the center of its bell-shaped body. It is surrounded by tentacles and is used for both feeding and expelling waste. Jellyfish capture prey with their tentacles and transport it to the mouth for digestion.
What is the body structure of a cnidarian?
A medusa has a bowl shaped body with stinging cells on the tips of their tentacles. Their mouth is located on the bottom where their tentacles are, and their central cavity is in the middle of their body. A polyp's body is shaped like a vase with stinging cells at the end of their tentacles, and their central cavity in the middle of their body. Their mouth is on the top of their body with their tentacles.
A sea anemone has?
A sea anemone has a flexible, cylindrical body with a central mouth that is surrounded by long tentacles.
Is a free swimming form of a cnidarian called a polyp?
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.
Do sea anemones have a mouth?
Yes, sea anemones have a mouth located in the center of their body. This mouth is surrounded by tentacles that help capture prey and bring it to the mouth for digestion. The tentacles contain specialized cells called nematocysts, which can deliver stinging cells to immobilize their prey. Overall, the mouth is a crucial part of their feeding and digestive system.
What parts of jelly fish?
oral tentacles, tentacles, mouth, anus, jelly, stomach
A is the tube-shaped body form with a mouth surrounded by tentecles which serves as the asexual stage in some cnidarians?
It's a "polyp" bro.
What is the general structure of cnidarians during the medusa?
Cnidarians in their medusa form typically exhibit a bell-shaped, free-swimming body structure. They have a gelatinous umbrella-like body called the bell, which is equipped with tentacles hanging downwards, containing specialized cells called cnidocytes for capturing prey. The body is radially symmetrical, with a central mouth opening surrounded by the tentacles, and they possess a simple nerve net for coordinating movement. This structure allows them to effectively navigate and capture food in their aquatic environments.
What is a polyp body form?
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.
What are the external features of hydra?
tentacles, body, basal disk, mouth, nematocysts
What are the 2 basic types of body plans in cniddarians?
The first body plan is a Medusa bosy plan which is like a jellyfish the one above is a medusa. the mouth it located at the bottom of the body. The appendeges are also located at the bottom. A polyp (on the right) ,like a sea anemone, has the appendeges at the top along with the mouth. They are also attached to solid ground unlike Medusas.
What do the two body forms of cnidarians look like?
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.
