Which statement best describes a difference between mitosis and meiosis in humans? A.
Mitosis only occurs in the presence of oxygen, while meiosis can occur in the absence of oxygen.
B.
Cells produced by meiosis are genetically identical, and cells produced by mitosis are genetically unique.
C.
Mitosis is primarily used to create body cells, and meiosis is primarily used to create sex cells.
D.
Cells produced by mitosis possess half the genetic material of cells produced by meiosis.

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.