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Where is the dermal branchiae and the pedicellariae of a starfish?
Wiki User
∙ 14y ago
The dermal branchia is an extension of the body cavity through with oxygen consumption occurs--(gas exchange)
The pedicellariae are picher or jawlike structures that clean debris off of seastar.
Wiki User
∙ 14y ago
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What is dermal branchiae and its function?
Extensions of the body cavity, located between dermal ossicles, where gas exchange occurs.
Why does a vital function of pedicellariae clean the surface of a starfish?
So that the starfish's surface does not get covered in encrusting organisms, such as planktons or parasites. This action keeps the starfish healthy and alive.
What is the function of the pedicellariae?
It's meant to keep the surface of the starfish's skin clean of parasites since sometimes, the little spines are poisonous and can also kill them rather than just deflecting them
Can starfish sense energy?
Starfishes do not possess a well-defined sense organs. However, they have tube feet, spines and pedicellariae that are able to sense temperature, touch, light, orientation, and the water around them.
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 ossicles in starfish?
The starfish is an echinoderm with an endoskeleton of calcium carbonate "ossicles". These honeycombed plates form the dermal region with an overlying epidermis. Their function is to protect the underlying tissue and to give strength and structure to the star fish. They are the equivalent to the human skeleton, more or less.
What two kinds of structures are scattered between the spines of sea stars?
Pedicellariae
Where is the dermal?
Your skin is the dermal.
What dermal structures are responsible for fingerprints?
The dermal tissue structures responsible for fingerprints are dermal papillae. They are tiny extensions of the dermis into the epidermis.
When can you unscrew your dermal?
You can unscrew you're dermal anchors safely after 3 months.
What is the function of a pedicellariae on a star fish?
Pedicellariae protect sea urchins by snapping open if something touches its outer surface. If it is touched on its inner surface then it snaps shut. They can be toxic because some have poison glands inside of them. They are attached to the stalks at the base of the spines that cover the sea urchin.
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