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Spicules are tiny structures of hard crystal that give the sponge it's shape. There are many different types of spicules, some examples are; acanthostyles, stongyles, and anatriaenes.

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Why would spongin and spicules discourage predators from eating sponges?

spongin and spicules are the sponges body support and defence


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 the sharp structure called in a sponges body?

The sharp structure found in a sponge's body is called spicules. These spicules provide structural support and protection for the sponge.


Tiny hard needles of silica or calcium carbonate that make up the skeleton of some sponges?

Spicules are tiny hard needles made of silica or calcium carbonate that provide structural support to the body of certain sponges. These spicules can vary in shape and size depending on the species of sponge and are often used in taxonomy to classify sponges.


What type of animal has a collar cells an osculum and spicules?

An animal with collar cells, an osculum, and spicules is likely a sponge. Sponges are simple aquatic animals that filter feed using collar cells and have a central opening called an osculum through which water exits their bodies. Spicules are tiny, hard structures that provide support and structure to the sponge's body.


What type of sponge material supports a sponges body structure?

A network of spongin or spicules.


Where is the needle-like parts in found in sponges?

The needle-like parts in sponges, known as spicules, are found throughout their body structure. These spicules can be made of silica or calcium carbonate and provide structural support and defense against predators. They are often embedded in the sponge's mesohyl, the gelatinous matrix between the outer cell layer and the inner canal system. Spicules vary in shape and size depending on the sponge species.


What is the function of spicules?

Spicules are small needle-like structures found in some animals like sponges and sea urchins. They serve various functions including structural support, defense against predators, and aiding in movement.


Do sponges have hydrostatic skeletons?

Sponges do not have hydrostatic skeletons. Instead, they possess a simple body structure supported by a matrix called mesohyl, which contains various cells and skeletal elements like spicules and collagen fibers. This structure provides support and helps maintain the sponge’s shape, but it lacks the fluid-filled cavities characteristic of hydrostatic skeletons found in other animals. Thus, sponges rely on a different mechanism for structural support.


What are special characteristics of porifera?

Porifera are sponges, they have no main organs or tissues. They are a loose aggregation of cells. To eat they pump water though their system and catch the particles in the water. A very basic cell structure.


How many types of sponges are there?

There are four classes of sponges classified so far. The classification is based on the difference in basic cell structure and type. They are,Calcarea - has single nuclues and single external membrane.Glass Sponges - has multinucleated cell.Demosponges - same as calcerea but their spicules are made of silica whereas for Calcarea it is made of calcite.Homoscleromorpha - same as Demosponges except for the different body structure it has. It is the most recently classified class.