I tried replying to a thread in the 5th page, but I couldn't because token expired

Test Preparation SAT Subject Test Preparation
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<p>I tried replying to a thread in the 5th page, but I couldn't because token expired. This is from the November Biology test.</p>

<p>
[Quote]
Questions were about those light spectrum. Snake follows <strong><em>. Plants dont absorb </em></strong><strong>. Insects use _</strong>__ to predict the place were pollon falls. Highest that human can see. </p>

<p>a) UV light
b) violet
c) green
d) infrad
e) microwaves</p>

<p>I put d, c, e, b

[/QUOTE]

Hi, I wonder how you guys can answer this kind of questions. It doesn't seem to be covered by any test prep book. How can you study for that?</p>

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<p>I think it's mostly common sense. I guessed infrared for snakes and insects because I thought about infrared vision LOL. You should also know that the visible spectrum does not include UV, so that makes violet the highest a human can see.</p>

<p>Plus, the only other choice besides infrared for the insects and snakes questions was microwaves, which would not make sense.</p>

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<p>I agree with shiomi about the common sense statement, but not with some of the answers.
Snakes use infrared, plants don't absorb green... but don't insects use UV light and doesn't green light have a higher wavelength than violet making it the fourth answer?</p>

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<p>^Uhhhh, wasn't the original question pertaining to insects about detecting a certain light to pinpoint their landing on a location or something? I'm not sure, because insects can detect ultraviolet but insects also use infrared to home on a target. And, I didn't say plants didn't absorb green. Also, violet is higher than green I think o_O - it was placed in order on the test and violet was definitely higher up..</p>

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<p>I know you didnt say plants don't absorb green... i was referring to the original answerer.</p>

<p>Also, green is higher up: <a href="http://www.netl.doe.gov/ssl/images/wavelength.jpg%5B/url%5D"&gt;http://www.netl.doe.gov/ssl/images/wavelength.jpg&lt;/a&gt;&lt;/p>

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<p>^Ahh yes, I think I remember this problem. But I think the question asked what is the highest energy light that humans can see, in which case it is violet.</p>

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<p>...</p>

<p>Humans can see green too.</p>

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<p>^Uhh, notice I said highest energy not wavelength, there's a difference.
Thank you for pointing out humans can see green. I did not know that. :)</p>

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<p>Oh crap! you're right. Many apologies =.= would have sworn it was wavelength so i happily ignored the "energy".</p>

<p>i'll look for the original question</p>

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<p>Heh. Always willing to help a fellow human :P
It was an honest mistake. Take it easy, mate.</p>

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<p>umm chill out shiomi. people make mistakes lol i put green too</p>

<p>what's a -8 on the bio-M test?</p>