the sieve plate is a filter for the water that enters the "Water Vascular System" in Echinoderms.
The function of the central disk on the starfish is to regrow an appendage if one is cut off. It is where the arms of the starfish originate.
by flowing along with water through perforations in the sieve plate
To poop.
The function of the ambulacral groove on a starfish is to open the shells of bivalves. It also hold the tubed feet of the starfish.
Sieve plates are structures found in sieve tube members of plants that allow for the movement of sugars, amino acids, and other organic compounds between cells. These structures have pores that facilitate this transport of nutrients throughout the plant.
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Cells containing sieve plates are called sieve tube members, a component of the phloem, which carries sugars produced in the leaves to various parts of the plant. They are characteristic of angiosperms (flowering plants) while gymnosperms (cone-bearing plants) have only sieve cells. Sieve cells and sieve tube members are collectively referred to as sieve elements.
It is a small spot located just off-center on top of a starfish. That is where the water that is used to operate the tube feet is filtered before entering the animal. It is also called the sieve plate.
Pedicellariae of a starfish help to keep its surface clean by removing debris, parasites, and algae. This cleaning function is crucial for maintaining the health of the starfish and preventing infections or blockages on its skin.
In plant anatomy, sieve tube elements, are a specialized type of elongated cell in the phloem tissue of flowering plants. The ends of these cells connect with other sieve tube members, making up the sieve tube, whose main function is transport of carbohydrates in the plant.
To let out the wastes
Pits are small openings in the wall. Perforation plates are larger openings. A sieve plate looks similar to a sieve that is used in the kitchen. They all allow things to move across cell walls.