Water is the compound. Iodine and calcium are elements, and air is a mixture
Answer:
C6H12O6 + 6O2-> 6CO2 + 6H2O
9.organ system, 10. organ level I guess.
Cells need to reproduce for growth, repair, or replacements. Cells divide whenever a tissue / organ / organism is growing or needs repair.
Hope this helps :)
