Giving this drawing shows the internal anatomy of a sponge. what does the arrow in the middle represent? arrow pointing from inside to outside through the main center large area of a sponge question 1 options: the direction of the sponge's travel through the water the path food takes through the digestive system of a sponge the flow of water through the body of a sponge the path sperm take to fertilize the egg of a sponge save

The correct answer is the flow of water through the body of a sponge.  

The sponges are multi-cellular species in which the organ systems like the nervous system, digestive system, circulatory system, and others are absent. They possess a specific feeding system in which they maintain the continuous flow of water through their bodies. This water movement helps them to attain oxygen and food and remove waste.  

The movement of water all through the body of the sponge is unidirectional in nature, it gets inside the body of sponge via ostia, and exit through the osculum. With the external pumping of water, the cells found in the walls filter out the food present in the water.