<p>I'm pretty sure last time -5 = 800. It's the same as the Barron's curve.</p>
<p>Wasn't the taxis one about some insect flying away from a light source? Or was that the AP biology practice exam I did a while ago? @_@</p>
<p>Oh yeah. I answered taxis for that question, zdub. I'm pretty sure it's right.. because it was moving towards the food source, and taxis just means movement towards something.. and none of the other choices could have been right :)</p>
<p>Aquamarinee, I hope you're right and the curve stays that way for this test! with -5=800, I still have a decent chance, hahaha.</p>
<p>Good luck to everybody :)</p>
<p>OK, I skimmed through the thread. I’ll just briefly make some points, which in my opinion are correct.</p>
<p>Colorblindness does NOT skip a generation, it is dominant recessive.
DNA Polymerase does NOT cut DNA on specific locations (a splicosome does that). DNA polymerase reads the DNA fragment to be copied and brings together nucleotide fragments.
Translocation IS responsible for mutation. So is duplication and deletion. I forgot the correct answer.
In the graph of Nitrogen/Phosphorus fertilizers, there was a bar where no fertilizers were added. The most increase was of Nitrogen + Phosphorus. The least was (I think) of nitrogen alone.
In the circulatory system diagram, you had to recognize the heart (two-chambered). It wasn’t salamander/lizard. I don’t know the correct answer to this.
The farmer was cheated for the bull. Because it was said that the bull was homozygous for not having the unwanted trait. So a test cross was done, with cows recessive in the trait, and there were offsprings who had the trait. That can only happen if the bull was heterozygous..
Source of Acid rain SO2
Placenta. I put doesn’t act like an endocrine organ Progesterone is made by something else
As you move up the ecological pyramid, biomass decreases. The most biomass is with the producers.
ADH produces dilute urine
Telophase II in the t estes produces 4 haploid cells</p>
<p>Now answer my questions:
Which animal has the fastest metabolism (or was it hear rate)?
Frog, Bird etc. I chose Bird</p>
<p>Which animal is most closely related to rats?
monkeys, squirrels, or what? I chose monkey</p>
<p>For absorption of O2, which is required by every living thing? I wasn’t 100% sure. It can’t be specialized structures like gills or lungs. Is it moist membrane? I chose “A source of pure Oxygen”</p>
<p>What do higher plants produce?
I chose spores. Endospores are something completely different. Some bacteria/protozoans form endospores by losing their cytoplasm, and hardening. Only the nucleus remains. This is their dormant period.</p>
<p>What to add to the catalase enzyme to continue the reaction?
I put hydrogen peroxide</p>
<p>In the test es, what does telophase II produces what?
I put 4 haploid cells</p>
<p>What type of behavior do you call it when a protozoan moves towards a food source?
I put learned behavior. Was it taxis?</p>
<p>No.. "dominant recessive"? Colorblindness is definitely sex linked recessive.</p>
<p>DNA polymerase.. there was no question on that. Are you thinking about PCR?</p>
<p>Translocation/insertion/deletion etc.. correct answer is synapsis.</p>
<p>The question about the placenta, correct answer: does not conduct nerve impulses. From Wikipedia:</p>
<p>
[quote]
In addition to the transfer of gases and nutrients, the placenta also has metabolic and endocrine activity. It produces, among other hormones, progesterone, which is important in maintaining the pregnancy; somatomammotropin (also known as placental lactogen), which acts to increase the amount of glucose and lipids in the maternal blood; estrogen; relaxin, and human chorionic gonadotrophin (hCG).
[/quote]
</p>
<p>Fastest metab should be bird. Rats are not most closely related to monkeys, the correct answer is squirrel. Both are rodents. Absorption of O2, correct answer was not source of pure oxygen, humans don't have a source of "pure" oxygen. We need a moist membrance surface. Higher plants produce spores. To add to catalase, hydrogen peroxide. Teolphase II produces 4 haploid cells. Taxis.</p>
<p>I thought the core questions were harder than the 60-80 or 80-100. I hated the wording of the question about which graph was invalid. Hmm, what other questions..</p>
<p>Some people say the average curve for an 800 is -2 or -3 and some say it's more like -4 -5. Which is it?? </p>
<p><em>freaks out</em></p>
<p>"Progesterone is produced in the adrenal glands, the gonads (specifically after ovulation in the corpus luteum), the brain, and, during pregnancy, in the placenta"</p>
<p>-From Wikipedia.com</p>
<p>progesterone is not made by the placenta</p>
<p>and that is what i meant sex linked recessive.</p>
<p>I think the question with synapsis asked which of the following is not a chromosome mutation, and I put deletion because deletion is a gene mutation, not a chromosome mutation.</p>
<p>I could be completely off though.</p>
<p>amb3r > apples</p>
<p>it's synapsis.... anyway... apples is right for all of them- the placenta does make progesterone- at first the gastrula does, but when the placenta forms then it takes over and makes it... it does not have nerves!!!!! only muscles have nerves...anyway wat did u guys put for "WHy does the higher successions have more biomass than the lesser ones?" I put cuz of constant absorption of sunlight</p>
<p>Apples.. wikipedia directly states in two places that the placenta produces progesterone .. so it has endocrine function</p>
<p>davnasca, I caught that too, but I figured that a deletion was closer to being a chromosomal mutation than synapsis, because while deletion is a type of mutation, synapsis is a natural process that occurs in Prophase I and not any sort of mutation at all.</p>
<p>Momema.. higher successions have less biomass! They use energy for respiration and metabolism o__o</p>
<p>The placenta produces progesterone, I have a legit published book that says so.
It was fish, for the heart.
Fastest metabolism - don't remember that one, was it M?
Squirrels most related to rats.</p>
<p>oh i meant amb3r..</p>
<p>oops, y would i contradict myself, when i proved that apples was wrong -<em>- lol... wait amb3r, one of the test questions was that!!!!!! and none of the answer said it doesn't -</em>-</p>
<p>and besides, it has more plants and more plants= more biomass doesn't it... ru sure ur not misunderstanding the definition of biomass????</p>
<p>So far I've got 2 that we have discussed wrong. </p>
<p>Darn placentas and synapses! </p>
<p>Those both were pretty difficult questions though, don't you think?</p>
<p>what do you think my D will get if she omitted 0 and missed say 21??</p>
<p>about 660 for Bio-E and 670 for Bio-M, according to the Official Guide</p>
<p>omg... scores tomorrow</p>
<p>What did everyone get? I'm too horrified to reveal my score.</p>