Biological scientists use a variety of methods to gather evidence, or data. if a biologist examines how different variables affect plant growth in a controlled setting, what type of investigation did the biologist perform?
a.
observational field study
b.
model-building
c.
collection of specimens
d.
laboratory experiment
Answers: 3
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Biological scientists use a variety of methods to gather evidence, or data. if a biologist examines...
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