B is not one of the three domains of life
Well the picture could help :)
Answer:
I would say We don't have enough evidence or Cell theory is still changing.
Explanation:
There are so many cells in everything so it's almost impossible to know exactly what is going on. Theories about cells have been going on for over 500 years, and we still don't know exactly what is what.
Answer:
An ecosytem
Explanation:
I am pretty sure this is right since I just took bio couple of weeks ago. :)