Weater flows through the body of the sponge in the direction the arrow points in this illustration
How does water move through a sponge?
in through the flagellum and out
through the collar cells
in through the pores and out through
the osculum
in through the collar cells and out
through the epidermis
in through the spongocool and out
through the pores

Option B, In through the pores and out through the osculum

Explanation:

Sponges are poriferans which live in the location which are permanently located near water. The water in the body of sponges flows so that it can get the proper food for themselves.

The water flows through the cells of the body These are known as pores ( also called as porocytes) which is found in all over the body of the sponges.

The water after flowing in the whole body comes out of the oscula. These large openings are known are osculum.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.