Question

Scypha 40 Spore radial canals incurrent pores incurrent canal Mesh Dellylling Spongecol - central body cavity Incurrent canal Radialcan osculum

Examine the prepared slide, which is a cross-section of the sponge Grantia. Look for incurrent canals, which allow water to enter from the outside environment. Find the flagellated canals that open to the spongocoel, the space inside the sponge. Where would you expect to find choanocytes? Sketch what you observe, labeling the key features. Draw an arrow to show how water would move through the sponge.

Answer 1

باد ARROWS describe flow of Wates Choanocytes - Resenten - detting of spongocoel detting surface