You are a harmless marine bacterium floating in the water near a sponge.In order to avoid being drawn into the sponge along with the water the sponge pulls in, what area of the sponge would you need to avoid?

MCQs on the field of Marine Biology, from a survey of the origin of oceans and their movements to details of marine food webs, life cycles, and marine zonation. As well as on marine environment and ecology, taxonomy and physiology, and contemporary concerns in the field, including human influences on marine systems.