The illustration shows planaria which is a free living organism. It has flat shape and simple structure. This animal belongs to group of Flatworms. The flatworms do not have well developed respiratory and circulatory systems, these are simple organisms which derive the oxygen and nutrients by diffusion.
The ecological relationship between termites and the wood-digesting protozoans that live in their gut is an example of mutualism. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
