<p>agreed 141421356, had it narrowed down to slight variation and extinction, but extinction doesnt act on the organism, similar to natural selection</p>
<p>I think its blue light…</p>
<p>how did you tell if the two species on the marsh were different, and why they lived in different places???</p>
<p>Yes because darwin said that extinction kills off weaker SPECIES not individuals.
so the right answer was slight variations</p>
<p>what do you need to get 750+</p>
<ol>
<li> 5% increase in rate of oxygen in the 4 plant lab question=enzymes at their optimal temperature</li>
<li>epithelial lining=tight junctions</li>
<li>diagram was a lipid</li>
<li>tundra=high elevation/altitude low plants</li>
<li>tropical rain forest=broad leave nutrient poor</li>
<li>gall bladder motor neuron to </li>
<li>true breeding: same phenotype (REALLY? Apparently true breeding organism is homozygous. )
and then placental. I missed a lot. </li>
</ol>
<p>– What were these???:
12. what contains RNA hereditary=virus (IN M?)
15. random disappearance of a gene over time in a population-??
16. something about isolated population=genetic drift?? (allele disappearing)
18. mutation=appearance of a new gene in a population
29. rRNA was the most similar among all the species (wait what??? What question was this. Was it in M? )
30. what was the most useful in determining if a new species is plant/animal/bacteria? rRNA (WAS THIS IN M?)
32. HOX gene- was it after divergence of plant&animal? (IN M?)
33. fungi=chitin walls, eukaryotes, etc
42. 72 degrees (in the lab? explain more please!)
44. mammal/marsupial: gestation period-short
47. Both nerve cells and muscle cells have the same genes, but different functions. Expresses different genes</p>
<p>^ Idk depends on the curve I guess…
What was the one about the hot spring and the 1,2,3 thing?</p>
<p>hotspring-3-2-1 most stable to least</p>
<ol>
<li>it was the graph with the % DNA single stranded vs. temperature. was this in M?</li>
</ol>
<p>sorry. yes, most of those were in M.</p>
<p>I think the gall bladder was sensory…
and the true breeding is heterozygour is think</p>
<p>i still dont think that the temp increase was enzymes, but rather the dissolved oxygen in the water.</p>
<p>Chocofudge, no it was in core. </p>
<p>But that was a Graph reading question.</p>
<p>and scubasteve, Dissolved Oxygen had nothing to do with this. I got that wrong too. It’s enzyme.</p>
<p>wait nvm i think im wrong on the true breeding
and I think it is that the temp increases enzymes</p>
<p>xscubastevex, I agree with you, as temperature increases dissolved oxygen decreases</p>
<p>but it said the rate of oxygen increased so something must be happening with the enzymes</p>
<p>when we did the lab on primary productivity (lab 12 for AP students) we learned that cold water holds more oxygen, and ive never heard of enzymes involved in photolysis. But again i may be wrong.</p>
<p>Oh it did say that? must have over read that part…</p>
<p>I really think enzymes aswell, simply because the lab was more focused on photosynthesis.</p>
<p>The hot or cold water would not affect production of O2. It would just affect the amount in the air space.</p>
<p>yea. I believe there are enzymes involved in photosynthesis. when you break up the water.</p>