<p>posts need to have a minimum of 10 characters, so the posters just add some stuff to their posts to make it long enough.</p>
<p>i believe a few pages back there was a post stating the curves ont he REAL SAT II book and it went as follows for bio:</p>
<p>Bio E : 800-> 73 / 700-> 59
Bio M: 800-> 74 / 700-> 59</p>
<p>thus im gonna guess that, since most people aggreed that this test was considerably hard, the curve will be somewhere at 74-> 800 / 60-> 700</p>
<p>does that sound accurate?</p>
<p>and no i think the question said 1mL…not .1mL</p>
<p>btw: i just checked amazon and the laters version of the Real SAT II subject tests book by collegeboard was released on May 5, 2005.
so it is a relatively new and thus (im assuming…) accurate representation of how the curves will end up.</p>
<p>Eek. So far it seems like I missed 3 and omitted 1. Let’s hope for a generous curve. :P</p>
<p>And my point of view on the colony question: We diluted 1 mL with 1 L of water, so 1/1000 was the concentration. So I did 80 * 1000 -> 80,000. :P</p>
<p>wait… why would disease be density dependent?
I put drought because drought = less food, which means more animals would equal more competition, therefore more density dependent than disease, which would just wipe out all animals without defense regardless of how many there were</p>
<p>yea thats correct, im positive</p>
<p>and for the colony question, it asked for .1 dilution, so wouldn’t it be 8000 and not 80,000?</p>
<p>I was thinking how disease could spread from one organism to another if the population was more densely populated.</p>
<p>disease is density dependant. think about it, density dependant means it is effective by density of a population. disease spreads faster or slower depending on how dense a population is.</p>
<p>
</p>
<p>Density independent factors suggest environmental conditions like a drought.</p>
<p>And, according to AP Bio review texts, it is disease [we studied for AP Bio after SAT 2s].</p>
<p>well, there’s another question to add to the debate</p>
<p>I put disease</p>
<p>
</p>
<p>Another google search…</p>
<p>it was definately disease…</p>
<p>if you didnt know what a density dependat factor was, all you had to do was single the odd one out. there was disease, and then 4 natural-disaster type phenomana (blizzard and other weather / geologically related things)</p>
<p>I do know what a density dependant factor is… and that’s why I did not pick disease
density dependent almost always suggests competition because there are not enough resources to sustain every individual in the population</p>
<p>But see, a density independent factor does NOT change according to population density, hence a drought. A drought will occur whether or not there are tons of animals. Disease, however, WILL change according to population density.</p>
<p>drought might -lead- to a change in density dependant factors, but drought itself is not density dependant because it does not vary its effectiveness through different densities, whereas the virulency of a disease is completely dependant upon how dense a population is.</p>
<p>truth is right- drough is density -independant-</p>
<p>Cliffnotes says disease = depent, whereas natural disasters (drought) = independent.</p>
<p>hey do you guys remember the experiment where it said:</p>
<p>plant A only grows if it gets more than 13 hours od nighttime</p>
<p>flashes interupting the darkness prevent flowering</p>
<p>which one would allow plant A to stll grow?</p>
<p>i put D-> the one with the flash near the very begginning of the night time, and it had somewhere like 14.5-15 hours of nighttime total</p>