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not at all. Asterodiae (sea stars)which is a class that falls under enchinodermata may have anywhere from 5-20 or more "arms". That's only if u count those which are so not true appendages. The thousands of tube feet controlled by the water vascular sytem are apendages and they number in the thousands. pedicalary and papulla which are small pincher like apendeges that keep debris from settling on the aboral surface of the animal( there are thousands of these too). Not to mention the Ambulacral ridge(thosands of cillica may be found here as well), pyloric cecum, rectal cecum, gonads, cardiac stomoach.
On the opposite end i suppose Holothuroidea (sea cucumbers) are much simpler but still are composed of more than 5 body parts. Cells have difficulting being composed of just 5 parts. quite often 3 different stucutes compsose the outer cytomembrane
What else can I help you with?
What is the difference in body symmetry between the Phylum Echinodermata and the Phylum Chordata?
Echinoderms exhibit pentaradial symmetry, with body parts arranged in multiples of five around a central axis. Chordates, on the other hand, display bilateral symmetry, with a distinct left and right side mirroring each other.
Which organism would be classified as an enchinoderm?
An echinoderm is a sea animal that has a hard spiny shell, or exoskeleton. Echinoderms display radial symmetry, having 5 similar body extensions from a central point. The seven classes of echinoderms are brittle stars, basket stars, sea urchins, sand dollars, sea lilies, feather stars, and sea cucumbers.
How is an echinoderm's radial symmetry different from that of a jellyfish?
The echinoderm's mouth is the shape of a pentagon and it has 5 teeth-like teeth. The difference between the echinoderm's and the jellyfish's radial symmetry is that the jellyfish shows radial symmetry and is spherical in shape. The echinoderms are flatter, have five arms and have pentaradial symmetry.
How do echinoderms use their endoskeleton like an exoskeleton?
Echinoderms, such as sea stars and sea urchins, have an endoskeleton made of hard plates called ossicles that lie inside their bodies. Although this endoskeleton is internal, it functions similarly to an exoskeleton by providing support and protection. It allows echinoderms to control their body shape and movement, just like an exoskeleton does for other invertebrates.
What is reproduction of echinodermata?
Echinoderms reproduce sexually, with separate male and female individuals releasing eggs and sperm into the water where fertilization takes place. Some echinoderms can also reproduce asexually through regeneration, where a new individual grows from a detached body part.
What have bodies divided into five parts?
5 fingers and 5 toes
What is a echinoderms body structure?
it is usually with 5 arms
Do echinoderms have bilateral symmetry?
No, echinoderms do not have bilateral symmetry. They have radial symmetry, which means their body parts are arranged around a central axis.
What body parts do arthropod have that echinoderms do not have?
Gills and a well developed nervous system
What body parts do arthropods have that echinoderms do not have?
Gills and a well developed nervous system
Echinoderms body description?
Echinoderms are a phylum with usually 5 fold symmetry, spines and calcium carbonate plates.
What Body parts are arranged in multiples of what in most echinoderms?
Appendages.............in multiples of........numbers........and clouds
What is example of echinoderms?
Echinoderms can only be found in water, as they are aquatic. Some characteristics of Echinoderms are: Hard Skin, have arms or spines, have 5 body parts, organs found towards centre of body. Examples: Star Fish, Sea Cucumber, Sea Urchin
What parts of the world are echinoderms located?
Wales
Does Echinoderms have a body cavity?
Yes it does
Do echinoderms live in salt water?
Yes Eventually echinoderms do live in water.
Do echinoderms have body openings?
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