Which of the following would have resulted from the functions of prokaryotes on early earth?

1#earths oceans grew larger
2#less oxygen gas became present in the atmosphere
3#less carbon became present in earths soil
4#more oxygen gas became present in the atmosphere

What feature of cell theory is best demonstrated in the image

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism

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.