Anaphase II is essentially the same as mitotic anaphase except that in anaphase II and in mitotic anaphase . crossing over occurs; crossing over does not occur the cells are diploid; the cells are haploid chromosomes line up double file in the middle of the cell; chromosomes line up single file in the middle of the cell the cells are haploid and sister chromatids separate; the cells have the same number of chromosomes as the original cell and sister chromatids separate

When creating a graph, the goes on the x axis and the goes on the y axis. a. dependent variable, independent variable b. experimental group, control group c. independent variable, dependent variable d. control group, experimental group

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

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.