A sponge looks lifeless, evidence to show it is an animal is breathing, and Respiration. Sponge diets consist mostly of detritus, plankton, viruses, and bacteria; this is because sponges are filter feeders.
This is further explained below.
Generally, Even though it seems to be dead, a sponge is really an animal since it breathes and has a respiratory system. As filter feeders, sponges get the majority of their nutrition from detritus, plankton, viruses, and bacteria. Sponge diets are often rather varied.
In conclusion, the action or process of breathing includes taking in oxygen and expelling carbon dioxide with each breath. the process that cells go through to acquire energy by breaking down sugar using oxygen as a catalyst. respiration.
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