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Where does natural sponge come from?

Natural sponges are sea animals that live on the ocean floor. They are harvested by divers, who carefully cut them from their base before allowing them to grow back. Once harvested, the sponges are cleaned, processed, and then sold for various uses.


How is flint formed?

Flint is unique to chalk, and chalk is entirely composed of the remains of tiny sea creatures called coccolithophores and diatoms. Their various shells and skeletons were composed of mainly calcium carbonate, with some species utilising silica. After the chalk was deposited, decompositional bacteria began to feed on organic matter and released sulphur-rich compounds. These compounds mixed with water and formed a weak acid which began to locally dissolve the calcium carbonate proto-chalk. The resulting void filled with a silica rich solution, which over time hardened along with the strata, forming the flint nodules within chalk bedding we see today.


How do sponges ingest food?

sponges feed through their pores or holes, their pores create a current pulling food into the central cavity of the sponge. the food sticks to the collar cells that lines the central cavity, there the amoebocytes pick up the food and digest it, carrying the nutrients to the other cells.summary:porescollar cellsamoebocytesother cells.


How do sponges differ from other animals?

Sponges lack a true body cavity.Sponges exhibit radial symmetry.Sponges lack true tissues.Sponges are autotrophs.Sponges have a true coelom.-@leilooni


Does sponge conduct electricity?

An insulator or neither. The water inside of the sponge is what would conduct electricity.

Related Questions

What material is found in the skeleton of all sponges?

All sponges have a skeleton made of a protein called spongin or mineralized structures composed of calcium carbonate or silica.


What are the examples of the class calcarea?

Sponges are examples of the class Calcarea. They are multicellular aquatic organisms that typically have a calcium carbonate skeleton, giving them a hard and brittle texture. Calcarea sponges are found in various marine habitats worldwide.


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)


Do cnidarians have spicules?

No, cnidarians do not have spicules. Spicules are small, needle-like structures made of calcium carbonate or silica that are found in some sponges and echinoderms for support and defense. Cnidarians, such as jellyfish and corals, have a different type of support structure called a mesoglea.


What characteristic do scientists use to classify sponges?

Scientists classify sponges based on their body structure, specifically the presence of pores through which water flows for feeding and gas exchange. Additionally, they consider the type of skeleton sponges have, whether it's made of calcium carbonate, silica, or spongin fibers.


What is the skeletal type of a cnidarian?

Some cnidarians - the jellyfish, sea anemones - have a hydro static skeleton. Sea pens use small hard pieces of calcium carbonate called spicules for support, like sponges, and the polyps of corals excrete exoskeletons, also made of calcium carbonate, that support their soft bodies.


What is a calcisponge?

A calcisponge is any of a group of marine sponges containing calcareous spicules - spicules which resemble calcium carbonate.


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 is the scientific name of the calcarea?

The Calcarea is a cellular sponge. They are strictly marine sponges. Their scientific name is Calcispongiae. They are made out of calcium carbonate.


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


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.


What is spicules?

Spicules are spiny structures of sponges, used to harden their outside and deter predators, making them harder to chew and digest. They can be made of a range of substances including silicium (glass!).