Sidney Fox was a scientist who investigated the possibility that simple organic molecules could lead to the formation of coll precursors. An overview of his rosults
is shown in the diagram below.
cell
small
organic
molecules
linked
amino
acids
precursors
Which of the following terms belongs in the empty box in the diagram above?

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.