Susan designs an experiment to test the effects of Fertilizer X on corn yield as measured by the bushels of corn that are produced. Fertilizer X is used on one field of corn, and no fertilizer is
used on a second field of corn. Soil type, drainage, irrigation, corn strain (i. e., genetics), and
pest management are the same for both fields.
1. What is the independent variable?

2. What is the dependent variable?

3. What are the standardized variables?

4. What is the experimental group?

5. What is the control group?

Which is one example of a phenotypic change that is not genetic

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits

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.