December '09 SAT II Biology E/M Panic Thread

<p>Ok, for most people this isn’t worth panicking over. :P</p>

<p>But still :)</p>

<p>~14 days left. </p>

<p>How are you guys prepping? I have barrons and PR and i still gotta memorize loadsz.</p>

<p>someone explain to me the dif b/w classical conditioning and operant conditioning? thx</p>

<p>classical conditioning is learning by association. So say a dog salivates right before he eats food. If over a period of time you ring a bell a few minutes before it gets food it will start associating the bell with the food and salivate then. Operant is basically learning through rewards and punishments. like, if you do something wrong ull be chastised so ull avoid it</p>

<p>lool thx. </p>

<p>anyways. 11 days till this D=. i am so not prepared. using barrons and PR. is kaplan useful here???</p>

<p>Oh man I got like 150 pages left in the PR book. I’m preparing for this test with really NO prior knowledge in biology. I should probably go through the book 2x, but not sure if I have enough time. I am just getting to the part about structure of organisms and its like 100 pages. Is that difficult to go through and learn?</p>

<p>I’m taking chem…soooo worried because that’s my major in college!!! Anyways what I did was I read the entire Barron’s book…haven’t taken the practice tests yet but will within next week…and I made flashcards on all the tough and important stuff. It’s about 40 big flashcards, filled with information =X</p>

<p>I have one question for you chem whizzes… How the hell do you calculate equilibrium constants/concentrations? That is the hardest part of the damn test and something I can’t seem to wrap my mind around :(</p>

<p>haha abdallah same i’ve got pages of PR to cram. </p>

<p>i’ve got some prior knowledge in bio (like half a year of AP bio) but that might not be able to help me. </p>

<p>lets all hope for the best. what have ppl heard about PR in terms of covering all the stuff that we gotta noe for the test?</p>

<p>@abdallah, potentenum, I feel the same way. I’m cramming w/the PR and my Adv Bio textbook, we’ll see how that pays off. Makes me wish my school offered AP Bio… :(</p>

<p>Been taking practice tests from Sparknotes online and Barron’s like crazy.</p>

<p>Would a 770 on the Sparknotes test would get me a full score?</p>

<p>edit: haaate plant questions</p>

<p>Hey whoever has PR, for Chapter 9 Quick Quiz 2 there is a question</p>

<p>“If a mutation were to occur in a somatic cell instead of a gamete, that mutation [could/could not] cause genetic variability in the population” </p>

<p>Wouldn’t it cause genetic variability? The answer key says it couldn’t. </p>

<p>@ lediur</p>

<p>I hate plant questions too. I hate taxonomy questions as well. </p>

<p>@ everyone using sparknotes…</p>

<p>I couldn’t find any practice tests on sparknotes… only the study guides. can someone give me the link? thx</p>

<p>8 days left! D= EXTREME CRAMMING :)</p>

<p>Yeah, its definitely time to kick it into overdrive if any :wink: Lets give it our best shot.</p>

<p>not looking forward to this unfortunately :frowning: taking US history on the same day.</p>

<p>Are the barron’s practice tests realistic or are they unbelievably hard like those in maths?</p>

<p>it wouldnt cause genetic variability as somatic(body cells) do not pass their dna on to their offspring… only gametes(sex cells) pass dna on… if the gametes, however, were somehow mutated, then yes, genetic variability would increase as their off spring would also be mutated</p>

<p>i’m most worried about random hormones and glands that secrete them <_<</p>

<p>Hopefully the Barrons book has all that info potentenum</p>

<p>Some questions</p>

<p>

</p>

<p>Also there is another question where there is a foodweb. </p>

<p>Tuna and Markarel each have an arrow pointing to sardines and Herring. </p>

<p>And Sardines and Herring each have an arrow pointing to Krill and Algae. </p>

<p>Then all the sardines are destroyed. What will happen? </p>

<p>I was down to </p>

<p>B) The sardine population would decrease and
C) the mackerel and tuna populations would decrease </p>

<p>The correct answer was that mackarel and tuna populations would decrease. but wouldnt sardine populations decrease because the mackerel and tuna are how focusing on them more? Someone explain to me why the answer is not c and b. </p>

<p>the question for the foodweb was “In this food web, which would most likely happen if an oil spill killed all the herring?” </p>

<p>Thx</p>

<p>I am completely self-studying for SAT biology since I have not had the course in years, and I am doing the PR and Kaplan book, this stuff is so hard. The Kaplan I feel is overly difficult. I am also half way through AP chemistry and since I have ran out of dates I need to take my Sat Chem the same day. Please Help, what should I do, what book should i trust?</p>

<p>i think the stuff is hard… even w/ ap bio… sigh… … … its this saturday D=</p>

<p>OK. </p>

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<p>i don’t get it :frowning: cuz isnt a community differnet species together + abiotic factors?</p>

<p>B/c an ecosystem is everything in the environment, such as the organisms in the soil and minerals, etc.</p>