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spicules
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∙ 12y ago
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How can sponges affect human life?
the skeletons can be used as sponges to wash dishes
Does a orange elephant ear sponge have a skeletal system?
No sponges have skeletons.
Do fish have skeletons?
yes don't you see in Tom & jerrywhen cats eat fishes and through the skeleton ?? Alternate answer: Yes fish have skeletons. Some fish skeletons are composed of cartilage and some fish skeletons are composed of bone much like human skeletons. FISH ARE VERTBRATES WITCH MEANS THEY HAVE BACKBONES
What sponges have a skeleton?
Sponges don't have skeletons! They are invertebrates which means the creature doesn't have a backbone, but in this case, it doesn't have a skeleton! (I think this is right, I apologize if it isn't)
What is lithified of tiny marine organisms with skeletons composed of silica?
Chalk
What are aquatic animals' skeletons made of?
It depends on what animal you're talking about. Invertebrates like sponges and mollusks and insects have no skeleton at all. Sharks and their relatives have a skeleton made of cartilage. Fish and amphibians have bony skeletons.
What are the three classes of sponge skeleton's?
The three classes of sponge skeletons are siliceous or glass sponges (Class Hexactinellida), calcareous sponges (Class Calcarea), and sponges with a fibrous protein skeleton (Class Demospongiae). Each class has unique structural characteristics that support the sponge's body.
How was the rock made?
Chalk is a form of limestone composed of the skeletons and secretions of small marine organisms.
What kingdom and phylum do sponges belong to?
Sponges or poriferans are animals of the phylum Porifera.Sponges are divided into the following classes mainly according to the compositions of their skeletons:1.Calcarea2.Glass sponges3.Demosponges
How was the rock chalk made?
Chalk is a form of limestone composed of the skeletons and secretions of small marine organisms.
Which sedementray rock is composed of fragment skeletons and shells of sea organisms compacted and cemented together?
limestone
What are the three classifications of sponges?
calcispongia----composed of calcium hyalospongia.....made of silicates demospongia....made of protein
