<p>And for the ecosystem with broad-leaf trees and soil with poor nutrient, wouldn’t it be savanna since tropical rainforest has soil rich in nutrients due to huge amount of decomposition?</p>
<p>Northern coniferous forest doesn’t make sense because the trees have needle-like leafs. Tundra doesn’t make sense because there’s basically no tree at all.</p>
<p>i thought it was easier than the practice exams. I still had to omit 3-4 questions because i just had no clue and hadn’t gone over it before the exam (e.g. incomplete metamorphosis)… Does that limit my chances of getting above 750? </p>
<p>here’s a link to back savanna as an answer, infertile soil: <a href=“http://www.savanna.org.au/all/soils.html”>http://www.savanna.org.au/all/soils.html</a></p>
<p>Tropical rain forests have poor soil nutrients, im assuming because most of it has been absorbed by the vegetation. Rainforests was the answer for that one, im pretty sure.</p>
<p>@UncleGene6
I believe tropical rainforests have nutrient-poor soil due to leaching, right (not sure…)</p>
<p>This test kind of felt different/unexpected…I really wanted eye/ear, circulatory, and hormone questions…</p>
<p>oh I’m sorry it is tropical rainforest.
<a href=“Soil-Net.com - The Tropical Rainforest”>Soil-Net.com - The Tropical Rainforest;
<p>I thought the test was easier than the one in official guide, and the four barron/princeton tests. I’m a huge molecular bio person so I liked the relative small amount of ecology questions :)</p>
<p>What did you guys get for the clam & algae question???
The independent variable was: the feeding rate of the clam? (E)
Changing the temperature to 18 degree Celsius: Creates more variability? (D) </p>
<p>i said indep was salinity. didn’t really know about the temp change, i said it would stay the same</p>
<p>^ feeding rate is dependent variable… Salinity should be the independent variable? correct me if I’m wrong.
The “independent variables” represent the inputs or causes, or are tested to see if they are the cause.
The “dependent variable” represents the output or effect, or is tested to see if it is the effect.</p>
<p>@kulite
I believe the ind. variable was the salinity (salinity was the variable the person had direct control over).</p>
<p>@UncleGene6
I thought this was more difficult than all of those practice tests…</p>
<p>can someone explain the grasshopper incomplete metamorphosis question?</p>
<p>what did you guys say was the effect of melting permafrost? i had no idea lol</p>
<p>@ramenforlife I put the young looks like a small adult but it might have been the pupa has the insides that looks like an adult</p>
<p>@thearcanine
I don’t really know, but I put the oil choice because it seemed the most logical…
I’m probably wrong after looking at the below post</p>
<p>@ramenforlife
I don’t remember the answer choices, but know that incomplete metamorphosis is a type of metamorphosis with 3 distinct stages (rather than four). </p>
<p>bleh…math 2 was so much easier than this test :(</p>
<p>ahh I just looked up the permafrost question: <a href=“http://www.epa.gov/climatestudents/impacts/signs/permafrost.html”>http://www.epa.gov/climatestudents/impacts/signs/permafrost.html</a></p>
<p>so I guess the answer was the ecosystem option? or the CO2 greenhouse gas option. still unsure but either way I got that wrong </p>
<p>for the algae/clam question though, I really had no idea. I guessed clams are ectotherm so increase temperature will decrease their demand for energy, thus eating less… but now I think it’s stupid. Probably no change because that’s kinda like the style of SAT Bio.</p>
<p>I did something about hurting the diversity of the species? </p>
<p>the curve is generally around 2 off for an 800 for M, right? do you think it’ll be around that again?</p>
<p>I put migratory birds…</p>