Answer:The answer is diffusion.
Explanation: Unicellular organisms excrete waste by diffusion.
Unicellular organisms are organisms that have only one cell. They are called single cell organisms because all their life processes such as reproduction, feeding, digestion, and excretion, occur in only one cell. An example of unicellular organism is paramecium.
Diffusion is the inactive movement of molecules from the region of higher concentration to the region of lower concentration.
What you see
What you feel
What you hear
Anything taken with your senses
Answer:
I think b.
Explanation:
Cellular respiration uses glucose and oxygen to form co2.
You are going to need to give us the options
