A unicellular or single celled organism is the term for organisms composed of only one cell.
I hope this helped!
Well first, your immune system has two main halves, innate and adaptive... the innate is the line of defense to fight off disease and bacteria, which is made up of anatomical barriers
C. Temperature and pH can affect how enzymes work.
A stem cell is an extraordinary, early stage, unspecified cell that has the potential to develop into a number of specialized cell types.
there important because they can replace cells that have been lost or damaged
