Strengthen with Necessary Premise Questions - - Question 3
The energy an animal must expend to move uphill is proportional to its body weight, whereas the animal's energy outpu...
SarahAMarch 13, 2019
Something isn't adding up...
I read Ravis explanation, but something is missing with this explanation…or in my understanding…or whatever! But this isn’t making sense and I’m totally at a brick wall here…
Were given 4 data points with corresponding ratios.
Surface Area : Body Weight : E Expended : E Available
Answer choice (c) would look somethinglike this:
Small - 2:2:2:2
Large - 1:2:1:2
In the explanation we are told gthat “Speed is simply distance divided by time.” Ok. We have no data points to determine anything with this information.
Then later you explain that if the inverse of answer choice (c) were true, then the Dog could “theoretically run up the hill faster than the squirrel because its energy output available to run up the hill would be 20 times that of the squirrel.”
Where in the question stem are we told that speed increases as Energy Output Available increases?
It seems like there could be a number of assumptions being made here. Such as:
E Available = Ability to climb
E Expended is greater when moving uphill
E Expended to move uphill is the same for every animal
I’m not sure exactly what I am missing, but this answer does not compute and the explanation given doesn’t seem to be supported by the information given in the question stem.
Please Help :)
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Your question isn't showing up - is there a specific part of this question you had difficulty with?
SarahAMarch 17, 2019
I read Ravis explanation, but something is missing with this explanation…or in my understanding…or whatever! But this isn’t making sense and I’m totally at a brick wall here…
Were given 4 data points with corresponding ratios.
Surface Area : Body Weight : E Expended : E Available
Answer choice (c) would look somethinglike this:
Small - 2:2:2:2 Large - 1:2:1:2
In the explanation we are told gthat “Speed is simply distance divided by time.†Ok. We have no data points to determine anything with this information.
Then later you explain that if the inverse of answer choice (c) were true, then the Dog could “theoretically run up the hill faster than the squirrel because its energy output available to run up the hill would be 20 times that of the squirrel.â€
Where in the question stem are we told that speed increases as Energy Output Available increases?
It seems like there could be a number of assumptions being made here. Such as:
E Available = Ability to climb E Expended is greater when moving uphill E Expended to move uphill is the same for every animal
I’m not sure exactly what I am missing, but this answer does not compute and the explanation given doesn’t seem to be supported by the information given in the question stem. If this is outside the scope of the message board let me know and I will shelve it for a tutoring session. Thanks!
