1) Name the flagellated cell in phylum Porifera that propels water through the body of the sponge. 2)Water in sponges circulates inward via pores into a cavity called the and exits through the opening called the .

3)Name the cell in Porifera that produces spicules.

4)Name the 3 kinds of spicules. , ,

5) Digestion of food (plankton) starts with engulfment of food by choanocytes in a process called . Digestion therefore is (intracellular or intercellular/extracellular). (Hint: intra(L) = within; inter(L) = between or extra (L) outside)

6) An organism that can make both male and female gametes is known as a (G mythology). If no gametes are needed for reproduction the process is known as (ie, buds)