Biology, 24.08.2021 03:20 zahradawkins2007
18. Sandra wants to know how a new fertilizer will affect her tomato plants. She decides to
conduct a scientific investigation to determine the new fertilizer's effectiveness. Briefly
describe how Sandra could use the scientific method to do this. Include every step in the
process. Identify the independent and dependent variables and at least 2 controlled
variables. Include an experimental group and a control group as well.
Answers: 2
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List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.
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Biology, 22.06.2019 08:00
Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b.organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.
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Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above
Answers: 1
Biology, 22.06.2019 13:30
Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?
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18. Sandra wants to know how a new fertilizer will affect her tomato plants. She decides to
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