Biology 1
Formative Assessment #10
SC.912.L. 15.8
10. Early Earth was an extremely hot violent place of volcanic eruptions, collisions with
objects from space and deadly gasses. This was not a place for living organisms. Not until
the Earth began to cool did the possibility of life emerge. Which of the following was the
most likely trigger for life on Earth?
A. direct sunlight
B. appearance of water
C. decrease in methane gas
D. increased carbon dioxide
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Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

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.

Which of the following is not associated with invasive species?