WebAll cell types within the sponge obtain oxygen from water through diffusion. Likewise, carbon dioxide is released into seawater by diffusion. In addition, nitrogenous waste produced as a byproduct of protein metabolism is excreted via diffusion by individual cells into the water as it passes through the sponge. Reproduction WebSoil acts as a sponge to take up and retain water. Movement of water into soil is called infiltration, and the downward movement of water within the soil is called percolation , permeability or hydraulic conductivity. Pore …
28.1: Phylum Porifera - Biology LibreTexts
WebScattered among the pinacoderm are the ostia that allow entry of water into the body of the sponge. These pores have given the sponges their phylum name Porifera—pore-bearers. In some sponges, ostia are formed by porocytes, single tube-shaped cells that act as valves to regulate the flow of water into the spongocoel. WebAug 17, 2016 · Gametes develop from the differentiation of either choanocytes or amoebocytes, depending on the species. Sperm produced by the “male” sponge (one that is producing sperm at the time of reproduction) is concentrated and released into the aquatic environment through the oscula. The sperm floating in the water reach the “female” … how to share document on word
15.2: Sponges and Cnidarians - Biology LibreTexts
WebAs water passes through the sponge in this way, cells absorb food and oxygen and waste is excreted. Color the osculum (D) dark blue, the incurrent pores (C) light blue. Color the inside of the sponge where water circulates … WebWater is pulled into the sponge via internal choanocyte cells, which take in water through the sponge's outer pores. The choanocytes line the inner spongocoel, or body cavity. WebAug 20, 2024 · Water enters the sponge through many small pores (ostia) in its body wall and exits through the osculum, an opening at the top of the sponge. How do sponges use diffusion? Sponges Respire Through Diffusion When sponges pump water into their body, nutrient and oxygen-rich water passes over the cells. how to share documents in word