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According to the online Merriam-Webster dictionary, spongin is a "scleroprotein that is the chief constituent of flexible fibers in sponge skeletons"

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What types of spicules give a sponges body support?

Sponges have different types of spicules that provide support to their bodies. These can be made of calcium carbonate, silica, or spongin. Calcium carbonate spicules are needle-like and provide rigidity, while silica spicules are more delicate and form intricate structures. Spongin spicules are organic fibers that give flexibility to the sponge's body.


What protein makes up a sponge?

The flexible protein fibers that make up a sponge are called spongin. The hard, tiny spikes found in sponges are called spicules, and they are made of silica or calcium carbonate.


What 2 materials may compose a sponge skeleton?

1. spicules (calcium carbonate or silica) 2. spongin (protein)


Why would spongin and spicules discourage predators from eating sponges?

spongin and spicules are the sponges body support and defence


Infer how spongin and spicules discourage predators from eating sponges?

Spongin is a tough, fibrous protein that provides structural support to sponges, making them difficult to consume. Spicules are tiny, needle-like structures made of calcium carbonate or silica that can be sharp and harmful if ingested by predators. Together, these structures make sponges unpalatable and unattractive to most predators.


What is the function of the spongin ans spicules?

Spongin provides structural support in certain marine sponges by forming a flexible, protein-based skeleton. Spicules are tiny, needle-like structures made of calcium carbonate or silica that also provide structural support and protection in sponges, as well as help deter predators.


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 do spongin and spicules discourage predators from eating sponges?

Spongin and spicules are the sponges body support and defence. They both cover a sponge, and if a predator eats it it will be hurt. It will be hard to eat it, because of the sharpness and roughness of the outside. Well at least in the spicules case.


How spongin and spicules discourage predator from eating sponges?

Spongin and spicules are the sponges body support and defence. They both cover a sponge, and if a predator eats it it will be hurt. It will be hard to eat it, because of the sharpness and roughness of the outside. Well at least in the spicules case.


What is Demospongia?

The Demospongiae are the largest class in the phylum Porifera. Their "skeletons" are made of spicules consisting of fibers of the protein spongin, the mineral silica, or both. They contain 90% of all species of sponges.


What type of sponge material supports a sponges body structure?

A network of spongin or spicules.


What spicules made of?

Spicules are made of calcium carbonate or silica. These are tiny, needle-like skeletal structures found in marine sponges that provide support and protection to the organism.