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How are worms and sponges different?
Worms are multicellular organisms belonging to the animal kingdom, while sponges are multicellular organisms belonging to the animal phylum Porifera. Worms have bilateral symmetry and a digestive system, while sponges lack symmetry and have a porous body structure supported by spicules or spongin fibers.
How many prongs do spicules of grantia have?
Spicules of Grantia typically have four prongs. These prongs help provide structural support to the sponge's body and also aid in capturing food particles from the water.
How is the support in the body of a sponge different from that of an insect?
In insects there is a skeleton of cutin , cuticle , carotin while in sponges there are namatocytes
How do sponges carry out essential body functions?
Sponges carry out essential body functions through simple diffusion. They do not have a circulatory, respiratory, or digestive system. Nutrients and oxygen diffuse directly into their cells from the surrounding water, and waste products are expelled in the same way.
What is the sponges body covering?
Sponges belongs to family of coral reefs. their body is cvered with fibrous matter and the final last layer is covered the hard covering made up of Calcium carbonate. the outer covering of calcium carbonate helps them to protect them selves from their predators
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 substance are spicules in calcareous sponges?
Spicules in calcareous sponges are primarily composed of calcium carbonate. They serve as structural elements, providing support and rigidity to the sponge's body. The spicules can vary in shape and size, typically appearing as needles or rods, and are formed through a biological process involving the sponge's cellular activity.
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.
Do sea sponges have a exoskeleton?
No, sea sponges do not have an exoskeleton. Instead, they have a porous body structure supported by a skeleton made of silica or calcium carbonate spicules, or a protein called spongin. This unique composition allows sponges to maintain their shape while remaining flexible and adaptable to their environments.
