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Spicules provide support to the sponge. In fact, a spicule is defined as any (of various shapes and sizes, depending of the sponge) small calcareous or siliceous body embedded along the sponge's cells.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoSpicules are tiny spike-like structures that provide structural support and deter predators.
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Skeletal support in sponges may be provided by?
Skeletal support in sponges is accomplished by means of units called spicules. The two types of spicules are megascleres and microscleres. They can be made of proteins or minerals.
Why are spicules used as a primary characteristic in taxonomy of sponges?
Spicule shapes and mesh structures are essentially the only variable amongst sponge morphology that can be easily differentiated. Sponges are often described as evolutionary dead ends because there is so little variation possible (comparatively) with simple structures and very limited cell types.
How do intramembranous bones develop?
Steps: 1. Mesenchyme cells differentiate into osteoblasts and start to secrete matrix 2. Osteoblasts form spicules of matrix 3. Spicules trap osteoblasts in lacuna 4. Activity slows 5. Trapped osteoblasts called osteocytes 6. Bone growth proceeds outward from center (ossification center) 7. Spicules thicken into trabeculae (spongy bone) 8. Trabeculae connect (compact bone)
What type of symmetry do cnidarians possess?
radial symmetry
What is the function of the bundle of HIS?
What function of the bundle of his
What function other than support might spicules nerve?
Spicules, most commonly found in the Phylum Porifera (sea sponges) provide support for the animal and defense against predators. Some studies have also been conducted that prove spicules to sort of act as light transmitting features on deep sea sponges.
What are the functions of spicules in sponges?
Spicules provide structural support.
What is the role of spicules sponges?
Spicules, like our skeleton, give the sponge structure. Without spicules, Sponge Bob would be Sponge Blob.
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 function might spicules provide?
The major function of spicule is to provide structural support to the organisms. Spicules also play other roles and one of the roles is to provide deterrence from predators that might attack.
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)
