#11 is Binary Fission
#12 is Tissue or Tissues
#15 is Eukaryotic
A scrubber uses water to remove smoke from burning coal.
The main function of the circulatory system is to move materials throughout the body, blood for cellular respiration, sugars for energy, leukocytes for immune support, and other nutrients necessary for proper homeostasis.
I believe the answer is energy. Hope this helps. (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧
