ACT Science 1.4 Conflicting Viewpoint Passage
ACT Science: Conflicting Viewpoint Passage Drill 1, Problem 4. Which of the following pieces of evidence strongly supports the idea that plant patterning is caused by mechanical stress?
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And here are the potential answers...
This problem is asking us to find some solid evidence to support the idea of mechanical
stress causing patterning.
Well, we could read the passage yet again...or, we can use our awesome deducing skills to
figure out the answer by just looking at the choices.
So how do we deduce the answer?
Well, we're looking for evidence. Evidence means that it's something that we have observed.
Option A is true, but it doesn't provide us with how we have
observed it, or how it affects patterning.
Same with Option C. We know that auxin causes plants to grow,
but it doesn't provide evidence of mechanical stress causing patterning.
Option B. Those adorable patterns on raccoons do not have anything to do with PLANT pattering.
That leaves us with D.
"Scientists can injure a plant, and the plant patterning responds to this action
by taking on a pattern dependent on the size of the injury."
Sounds like pretty solid evidence to us.
Thorough, and it explains the effect of observation on patterning.
So D is the best answer.