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2 November, 04:06

You've been growing numerous plants in a greenhouse in dishes called flats. Different flats have different number of plant species in them (ranging from 1, 2, 4, and 8). You've grown these plants for 6 weeks and finally examining them.

Suppose you changed this lab's experimental design. Which of the following changes would probably NOT change the results?

a. Substituting slow-growing lettuces for rutabaga and mustard.

b. Letting the plants grow for twice as long, so some of the "fast-starters" slow down growth and "slow-starters" speed up.

c. Restricting water and/or nutrients, instead of supplying ample quantities of both.

d. Adding leaf-eating caterpillars that prefer rutabaga.

e. Moving the trays farther apart in the greenhouse, so the edges don't touch one another.

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  1. 2 November, 04:16
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    I think the correct answer would be C. It would be restricting water and/or nutrients, instead of supplying ample quantities of both that would not change the results of the experiment. This is because you are still supplying the same amount of nutrients and other things needed by the plant so the ratio of the growth of the plants will still be the same.
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