Biology, 20.09.2021 06:30 obliviousho2018
A student tied a potato cube to a plastic rod and suspended it in solution X. After
two hours, the plastic rod is bent slightly as shown in Fig. 1.1.
original position
of plastic rod
final position of
plastic rod
thread
beaker
potato cube
solution X
Fig. 1.1
(a) (0)
Explain the final position of the plastic rod after two hours.
Answers: 2
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Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2
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A student tied a potato cube to a plastic rod and suspended it in solution X. After
two hours, the...
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