Cell theory is one of the foundations of biology. The observation of Robert Hooke,Anton Van Leeuewenhoek,Matthias Schleiden,Theodor Schwann,Rudolf Virchow, and others led to the devolepment of the cell theory.
I would say ones that can be seen, it affects the physical era of life eg H20 one of its physical qualities is its clear... coloress
Answer:
Active/passive transport
Explanation:
The cell membrane is semipermeable meaning that is only lets certain things in and out.
Hope this helps. :)
