Biology, 28.12.2019 02:31 lizycacer863
Ascientist testing the effects of a chemical on apple yield sprays an orchard with the chemical. a second orchard does not receive the chemical. in the fall, the number of apples harvested from each forest is counted. which of the following is the independent variable in the experiment? a) the chemical
b) the number of apples
c) the first orchard
d) the second orchard
Answers: 3
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Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?
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Ascientist testing the effects of a chemical on apple yield sprays an orchard with the chemical. a s...
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