In the most simple type of canel system of Porifera, which of the following ways exhibit water flow?
Answers
Answer:
Explanation:
The central body cavity of sponges is called spongocoel. Their body is porous. The inhalent pores are called ostia and exhalent pores are known as oscula. The body of a sponge is organised in such a manner as to form a complex system of pores and canals. This system is called canal system. Water flows In through ostia to spongocoel and comes out to exterior via osculum. The continuous water current flowing through the canal system is very important for the life of a sponge. It brings in food and oxygen and canes away carbon dioxide, nitrogenous wastes and reproductive bodies. Thus, the canal system helps the sponge in nutrition, respiration, excretion and reproduction. So, the correct answer is 'Ostia ⟶ Spongocoel ⟶ Osculum ⟶ Exterior'.
Answer:
Sponge - Sponge - Form and function: Sponges are unusual animals in that they lack ... The essential elements of the water-current system include the pores, or ostia, ... The simplest, or ascon, type, found only in certain primitive genera of the ... its way into the central cavity, or spongocoel, and leaves by way of an osculum.
Explanation: