A sponge's body is perforated by many ______, through which water flows.

What term refers to the opening at the top of a sponge, through which water exits?Multiple choice question.AnusOstiumChoanocyteOsculum

The pores in the body of a sponge, through which water is drawn in, are known as which of the following?Multiple choice question.ChoanocytesSpiculesOsculaOstia

What are the four functions of water flow through a sponge?

How does a sponge obtain food and oxygen and dispose of wastes?Multiple choice question.with a one-way digestive tract that has a mouth at one end and an anus at the other endusing a gastrovascular cavity that brings nutrients in and expels wastes out of the same openingdrawing water in through numerous pores in the body wall and out a hole at the toppumping water in across gills and exchanging gases and nutrients with water

What type of cells surround the body of a sponge?Multiple choice question.AmoebocytesEpithelial cellsSpiculesChoanocytes