1. the genetic material is duplicated. anaphase 2. chromosomes move to opposite ends of the cell. interphase 3. chromosomes become visible; the spindle apparatus forms. prophase 4. the cell plate forms; the nuclear envelope is formed. telophase 5. the chromosomes line up in the middle of the cell. metaphase

9. the history of life on earth is recorded in

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.

Did the vinegar diffuse all the way to the center of any of the cubes? if so, which ones? what does this tell you about surface area-to-volume ratio and the diffusion rate?