Question

How Do Unicellular Organisms Breathe?

Answer 1

unicellular organisms breathe through the process of diffusion.
   hope this helps u...

Answer 2

unicellular organisms do not breathe in the typical sense , bt they respirate by allowing oxygen to enter the cell membrane through the process if diffusion . because they are so small , they do not have organs, pores and any entry way to breathe like multi cellular organism. THANKYOU