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Spicules are small, spike-like structures found in various organisms. They are composed of hard, sturdy compounds that often act as a protective covering on organisms, such as the spicules on some frogs' skin.
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The skeletons of sponges are composed of?
spicules
What is a calcareous sponge?
A calcareous sponge is any of a variety of sponge of the class Calcarea, with skeletons composed of spicules of calcium carbonate.
What are the functions of spicules in sponges?
Spicules provide structural support.
Do cnidarians have spicules?
Cnidarians do not have spicules. Spicules are commonly found in sponges and it is a simply a skeleton which has very tiny splinters that look like needles.
What is the role of spicules sponges?
Spicules, like our skeleton, give the sponge structure. Without spicules, Sponge Bob would be Sponge Blob.
What type of animal has cells an osculum and spicules?
Sponges have collar cells, osculum, and spicules.
What type of animals has collar cells and osculum and spicules?
Sponges have collar cells, osculum, and spicules.
What type of animal has a collar cells an osculum and spicules?
Sponges have collar cells, osculum, and spicules.
A special kind of cell that builds spicules?
it is scleroblast cells which produce spicules which are modified amoebocytes
What kind of animals have collar cells an osculum an spicules?
Sponges have collar cells, osculum, and spicules.
What are the subgrops of sponges?
calcarea - have calcite spicules, often have calcite exoskeletons glass sponges - silica spicules, no exoskeleton demosponges - silica spicules, may have exoskeleton, made of aragonite if present
How fast are spicules?
Spicules travel at about 20 km/s (72,000 km/h, 45,000 mph)
