Water enters the projections directly through pores, makes its way into the central cavity, or spongocoel, and leaves by way of an osculum. How does water go in and out of a sponge? ![]() Sponges create the current that draws water into the pores using many collar cells, each cell with a whip-like structure called a flagellum and a collar. ![]() Water is drawn into the sponge through tiny holes called incurrent pores. The water carries wastes away from the sponge. Water leaves the sponge through the osculum, a large opening. Water enters the small pores throughout the sponge’s body. The essential elements of the water-current system include the pores, or ostia, through which water enters the sponge (incurrent system) the choanocytes, or collar cells, which are flagellated cells that generate water currents and capture food and the oscula, openings through which water is expelled (excurrent … How does water enter and exit a sponge? What moves water currents through a sponge? ![]() How does water go in and out of a sponge?.How does water move through sponge path?.How does water enter and exit a sponge?.What moves water currents through a sponge?.
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