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It is the part that extends from the ring canal, all the way to the tip of the starfish. It's under the gonad.
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What is the function of the ambulacral groove?
The function of the ambulacral groove on a starfish is to open the shells of bivalves. It also hold the tubed feet of the starfish.
What are ambulacral ossicles?
In a starfish, the ambulacral ossicles are little calcified bony plates covering the radial canal.
Is a trench that runs along the ventral surface of the starfish's arms and holds the tube feet?
The Ambulacral Groove
On what surface is the Ambulcaral groove visible on a star fish?
Echinoderms can have ambulacral parts that include ossicles, plates, spines, and suckers. For example, sea stars or "star fish" have an ambulacral groove on their oral side (underside). This ambulacral groove extends from the mouth to the end of each ray or arm. Each groove of each arm in turn has four rows of hollow tube feet that can be extended or withdrawn. Opposite the ambulacral groove is an ambulacral ridge on the aboral side of each ray.
What is a groove of a starfish?
If your asking where it is, its on the Ventral(bottom) side. It is the indent in the starfishes' skin that goes through all of the starfishes' rays (arms). It is called the ambulacral groove.
What is starfish skin like?
On the surface of a starfish you will find spines used for protection as armor, dermal gills surrounded the spines, a central disk, madreporite, arms and an anus. Underneath tubed feet used for movement, mouth, ambulacral grooves, and its mouth.
What is the function of the spines in a sea star?
The spines on the oral surface are softer and bend to cover the mouth of the starfish as well as the ambulacral grooves. They are basically for protection.
What is an ambulacral?
An ambulacral is another word for an ambulacrum, a row of pores of an echinoderm for the protrusion of appendages such as tube feet.
Why are starfish in the echindoerm?
If you look at an echinoderm such as a sea urchin or a sand dollar, you will see that the shell is covered in a pattern (of ambulacral and interambulacral areas) with 5 fold symmetry. A starfish has 5 arms and if you imagine a starfish folding its arms up and over its back until the tips meet, then you will see it begins to resemble a sea urchin, the two are clearly related and have a common ancient ancestor.
What is the main function of the ambulacral system in ehinoderm?
locomotion
Characteristics of starfish?
They have 5 'legs', like a five pointed star, and have a sort of fuzzy, bumpy flesh. Having held one before, I know that they come in many colors, such as purple.Characteristics of a Starfish include:1. Starfish bodies are highly flexible.2. The starfish has no eyes, ears or nose and rely solely on their legs for almost everything.3. Most starfish feed on slow-moving or stationary animals, such as: oysters, snails and clams.
Do starfish have a nervous system?
Lobsters do indeed have a nervous system, however like insects, they do not percive pain.
