<p>also, does anyone know which systems we need to know?</p>
<p>can someone explain #23 on practice exam</p>
<p>@captainswag, yes that should give you a five. yay!</p>
<p>i didn’t get 23 either, the answer makes sense but i don’t get the logic behind it</p>
<p>Sparkchart (colorful, condensed review guide)</p>
<p><a href=“http://www.sparknotes.com/free-pdfs/nook-study/9781411487468_biology.pdf[/url]”>http://www.sparknotes.com/free-pdfs/nook-study/9781411487468_biology.pdf</a></p>
<p>wow @cercatrova, thats a treasure trove. thanks!</p>
<p>so, any frq predictions?</p>
<p>What practice test are you all referring to as having taken!?</p>
<p>also can someone explain #32 on the multiple choice?</p>
<p>@proflamel its the official practice test from the collegeboard. it was given to teachers only, but it obviously got on the internet ;)</p>
<p>I’ve been reading through this thread’s previous posts and a lot of you have been talking about getting 80% and 70% correct on this practice test…but what practice test are you all talking about?</p>
<p>@ilovescience2 Ohh okay. I believe my bio teacher gave that to us at the very beginning of the year as a sort of pretest. Do you (or anyone) have a link!?</p>
<h1>23: i think its just asking what type is human blood usually (isotonic)</h1>
<h1>32: you can narrow it to C,D pretty easily and from there you know its C because in D all the spaces in between the species are all the same like 5 is as closely related to 4 as 3 is to 2 which is clearly not true</h1>
<p>I posted this a few pages back. 2013 practice exam: <a href=“https://docs.google.com/file/d/0Byoa8-JKGIc9Tzg0c29KZTJQOGM/view?sle=true[/url]”>https://docs.google.com/file/d/0Byoa8-JKGIc9Tzg0c29KZTJQOGM/view?sle=true</a></p>
<p>would you guys recommend taking practice tests right now or reviewing the concepts?</p>
<h1>23 I was honestly a little confused to, but I did it by process of elimination and used a bit of information from the given description. They said that the saline solution is used to rehydrate patients, so that narrows it down to choices B and C (I mean, rehydrating wouldn’t suck out all the water or make the cells burst). This is where I did a little guessing. I thought that choice B couldn’t be right because it said “pump water out”. Shouldn’t a patient trying to rehydrate need to have water pumped in?</h1>
<p>I’m not sure if it made any sense, but I hope it helps a little 
Also, I would love help on #32, too!</p>
<p>@stripedpanda: i’m taking practice tests and then based on what i got wrong (i’ll write down the concepts which confused me) i’m reviewing those concepts specifically (:</p>
<p>@ejparkk: for the practice test? just check all the similarities, you can cancel some out as you check with the numbers. like for a: 2 and 1 are way too far apart so that can’t be true. b: 3 and 5 are too close together. d: 5 and 3 are right next to eachother so they’re too close to have 27 nucleotide differences. </p>
<p>c: is your correct answer because all the numbers match up!</p>
<p>Number 23 was pretty confusing at first, but think about it this way.</p>
<p>Osmosis is passive diffusion of water across the membrane (either semi-permeable membrane or via aquaporins). That means that it wouldn’t need a pump or energy to move the water across the membrane</p>
<p>55/63 MC 4/6 Grid in (one being a simple mistake). 85.5% right both averaged together. How similar do you all believe that this practice exam will be compared to the actual test tomorrow, because this practice test was so much easier, to me, than any other practice test or questions I’ve taken/had. (I’ve self studied this, so I haven’t really went into depth with anything, but I’ve gone over just about everything)</p>
<p>Did anyone else think That test was pretty hard?</p>