Animal dander would be the answer you're looking for.
Hope this helps :)
A warm air does always rise and cold air falls
28 find that the cell spends in prophase (number of cells in prophase divided by the total # of cells (36) multiplied by 100)
Answer:
The human system is a complicated living organism that is structured of internal and external organs and fluids. It has the heart, liver, kidneys, stomach, large and small intestines, brain, and skin.
