Modern biological classification systems differ from outdated systems because they consider

a.
biological biodiversity.

b.
environmental changes.

c.
evolutionary relationships.

d.
morphological comparisons.

In the practice of science, this type of reasoning is used to develop explanations.

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.

Were you able to observe the nucleolus in any of the cells if so which ones