<p>wander,
two alleles counts as multiple… if you breed a two black heterozygous guinea pigs, and it results in a 3 black: 1 white ratio of offspring that illustrates multiple alleles, not dominance</p>
<p>@jubilant</p>
<p>If black is the dominant trait and white is the recessive, then crossing two heterozygous guinea pigs will result in one homozygous dominant, two heterozygous, and one homozygous recessive. Therefore you have 3 black and 1 white.</p>
<p>edit: case in point, "Multiple alleles means that there are three or more forms of a gene for a trait. " – Here you only have 2</p>
<p>For the “Hardwood forest burns down; a year later, what types of plants are present?” question, wouldn’t the answer be grasses/shrubs? I thought lichen at first because it’s the pioneer organism but when a forest burns down there isn’t just bare rock leftover.</p>
<p>@itsinreach</p>
<p>Yes, you’re right that there would be no pioneer organism. I pointed out two pages ago that this was “secondary succession,” so lichens is not the answer. However, I am still divided between weeds and shrubs.</p>
<p>^^ uh, does this help? its says shrubs grow back but once again the ambiguity with lichen vs. shrubs confuses me idk still…i put woody shrubs</p>
<p>Secondary
•Secondary succession, which is more common, occurs where an ecosystem previously existed. For example, after a natural disaster—such as a forest fire—plant life and soil is wiped out or damaged. A fire burns and destroys plant life in a previous ecosystem. Once the land has been wiped out, organisms begin to colonize any area that may still be habitable. These organisms are called the pioneer species because they take the lead in sprouting new plant life. In time, plants, flowers, new trees and SHRUBS start to grow. </p>
<p>[Steps</a> of Primary & Secondary Succession | eHow.com](<a href=“http://www.ehow.com/list_7248745_steps-primary-secondary-succession.html]Steps”>http://www.ehow.com/list_7248745_steps-primary-secondary-succession.html)</p>
<p>Yeah, shrubs only appeared as an answer once. And that website reassures me that it was the right answer.</p>
<p>@jjtheairplane</p>
<p>Unfortunately, it doesn’t give any sort of time span. I’m not saying shrubs is wrong, but it’s still hard to tell.</p>
<p>the E was impossible. just ridiculous overall…I would like to go back in time and ask myself why I didn’t flip through to check out the M before starting the E. so stupid.</p>
<p>Well effml. I guess im taking it again in november and applying early to my safeties instead of reaches.</p>
<p>^ The deadline has already passed for Nov.</p>
<p>^ Pay the late fee.</p>
<p>@nocrackup- The additional questions on the E part were tough. I took E though 
Would the curve be more lenient for E?</p>
<p>^^ indeed.
btw i asked my bio teacher about the forrest burning down question and he said lichens is your best bet, but the fact that they said one year is kind of crap because succession depends on a lot of things so just saying one year after a fire is a bad question.</p>
<p>^come on, that was like the easiest question. I refuse to answer that question…</p>
<p>well, I’ll answer, it was both enzyme and the first chemical.</p>
<p>Hmmmxsunshine, the answer that chicken1992 provides is correct. I think Chemical Y inhibited reactions, so you can rule that out. And just the enzyme won’t cut it. You need a combo of the enzyme and Chemical X.</p>
<p>nwgolfer321, I totally agree. That question was poorly worded and not very fair. Including the time threw some people off, but the situation in the question was weird, too.</p>
<p>^ I agree 100% that the bio test content was poorly made this time, the Qs lack clarity.</p>
<p>^agreed 100% there was so much ambiguity it was not fair.</p>
<p>Last E/M lab section messed me up, now I can’t get an 800.</p>