Official Biology January 2005

<p>The ones that you're inquiring about are definitely correct.</p>

<p>Could someone verify my answers on the guppy/zebra/C3 ones? Or does anyone remember the plant one, where they had a VI plant?</p>

<p>I'm just wondering if this curve is gonna be larger than the one listed in Real SAT II's...it seems a lot harder but with CB, you never know.</p>

<p>Ugh...I think I got at least five wrong on this test.</p>

<p>Can anyone explain the plant tube problems to me? I knew it had to be either the leaves or the roots but how do you actually know? That section killed me. I think there was another Q about spreading petroleum jelly on the leaves too (I think the answer had to do w/ light blocking)</p>

<p>Here's some other questions, tell me what you think:
* A characteristic of a jellyfish - radial symmetry?
* Something about a low % of carbo's in body - II + III
( first source of energy AND excess > fat)
* ecology tree w/ fish > amphi > reptiles splits to birds & mammals</p>

<p>(I think the answer had to do w/ light blocking)</p>

<p>No, I think the petroleum jelly prevented the water from coming out. Hmm...maybe that's the plant VI question I was referring to. Whew! At least it had nothing to do with roots and leaves.</p>

<ul>
<li>A characteristic of a jellyfish - radial symmetry?</li>
<li>Something about a low % of carbo's in body - II + III
( first source of energy AND excess > fat)</li>
<li>ecology tree w/ fish > amphi > reptiles splits to birds & mammals</li>
</ul>

<p>Yes.</p>

<p>Man, this section just gets worse and worse. I picked the light answer b/c I think that jelly is obaqe, and no light in the leaves means no photosynethis and no photolysis to break up and use the H20. I know SOME H20 falls out of the stomata, but I just assumed most would drop out and recollect in the tube anyway. It seems like Tube 1 showed evaporation was minimal, so it would be hard for water to get out unless it was chemically split. I could be totally wrong though.</p>

<h2>What's the curve look like in the Real's by the way. I can't find any tables, and its driving me crazy.</h2>

<p>More Q's
* How to tell a moss apart from an angiosperm - ??? (picked fruit, wrong)</p>

<h2>* Where else can a seed get its nutrition from (cotelyl maybe, can't spell it)</h2>

<p>Edit: Who else took the M side. I actually thought that was the best part of the test (best being easy :)). I can't really recall it too well, but I remember some questions on a protein/sugar enzyme experiment, and some DNA questions.</p>

<p>looking at the answer, i found myself in a 660ish range :( last time i got a 630 :(
gl to you guys, i'll just cry in my room</p>

<p>"How to tell a moss apart from an angiosperm"
I believe it was a gymnosperm, and the answer is vascular tissue.</p>

<p>"Where else can a seed get its nutrition from"
cotyledon</p>

<p>I'm still wondering if I should cancel my score or not. I think I did very well (around 760), but it's not an 800. I know that this might sound strange to you guys, but I am very worried right now, as my other tests are all 800's. This is a very serious issue for me, and I hope you will not view it as an attempt to boast about my score.</p>

<h2>Edit: I did mix up angiosperm w/ gymnosperm - reading is hard</h2>

<p>Lol I am in the same boat! I have a great SAT I score and good SAT II (800,750,710), but I want a perfect 800 in a science too, since it would probably help my admission in engineering. If its not higher than my 750 however it's kind of a waster for me. But I've got my master plan, which I'll share with you:</p>

<p>Just send your bio score to your 4 safety schools, or even ones that you not applying to. Then check your score online as soon as possible, and if it's good you can pay the extra $$$ to send it to the schools that are higher on the selectivity range. I believe you can see your scores about 2 weeks before the official comes out, so this should be a painless way to go about it. I'm not sure about the exact timeframes of the score reports, but its better than cancelling a potentially good score. The worse case is that you'll just miss the deadline and will at least know what you got for the same $ as canceling...</p>

<p>PS. I am assuming you are a senior, and you have already met & sent the testing requirements anyway. And I doubt 760 is ever frowned upon in any college (even HYP), particularily if your top three are 800's :rolleyes:</p>

<p>Now tell me the curve, damnit :)</p>

<p>For the Zebra question, I said that the body structure, or whatever, shows how they are related. Anyone else?</p>

<p>Some more Q's I remember:</p>

<p>*Which of the following is LEAST useful in relating two animals by ecological or evolutionary relationships - learned behavior
* Two brown-heads (hetero) have two red head boys, what's the probability that next child is a redhead girl - 1/4</p>

<ul>
<li>Two brown-heads (hetero) have two red head boys, what's the probability that next child is a redhead girl - 1/4</li>
</ul>

<p>the answer is not 1/4 but 1/8, 1/2 (the chance of having a girl) X 1/4 recessive = 1/8</p>

<p>What? Does anyone remember that redhead question? I don't.</p>

<p>"I am assuming you are a senior, and you have already met & sent the testing requirements anyway."</p>

<p>Haha, two assumptions that are incorrect. :)</p>

<p>I am actually a junior, and I did decide to cancel. It didn't seem like I was doing too hot in Math IIc either. It's alright...I still have October and November to meet the SAT II requirements (or June, if I'm up for it).</p>

<p>conker some of your answer are wrong!!! r rees squireels and ets represent a ecosystem not a commuinity</p>

<p>No it IS a community b/c it's only talking about the animals, not the enviroment.</p>

<p>That genetic question was 1/8</p>

<p>For the 8 animal question, what was the most diverse one?</p>

<p>i agree with hot_ice, it is a community, which is the populations of all species, including animals and plants</p>

<p>i am a senior and currently taking ap bio, the test to me is pretty easy, but there is one question which i skipped, that question is about chromosome invertion. i know what it is, but the diagram really confuses me...</p>

<p>Crap, I hope I did the redhead cross right on the test...</p>

<p>I've compiled all the answers we have so far into the list, so that ppl can see it all together. If anyone else remembers more, just add it on and repost the list. </p>

<h2>Does anybody remember the molecular questions?</h2>

<p>RANDOM MC's</p>

<p>Proteins broken down: Amino acid level in blood rises
Adenine has same quantity as thymine
Squirrels, trees, etc. represent community
Scientific hypotheses must be testable
Inversion: (D), I think. The one with the thick and thin band switched around.
Farmer banging pail: example of conditioned response
Glucose in kidneys: filter out by active transport (I put passive transport!!)
NOT a function of glia: producing neurotransmitters
Uterus lining: progesterone
Division of cells: vascular cambium
Yellow-orange vegetables: vitamin A
Which animal has gills - crayfish
How many nucleotides for three protein amino acid - 300
A characteristic of a jellyfish - radial symmetry
Something about a low % of carbo's in body - II + III
( first source of energy AND excess > fat)
Ecology tree: fish > amphi > reptiles splits to birds & mammals
How can you tell a moss apart from an gymnosperm - vascular tissue
Where else can a seed get its nutrition from - cotyledon
Which of the following is LEAST useful in relating two animals by ecological or evolutionary relationships - learned behavior
Two brown-heads (hetero) have two red head boys, what's the probability that next child is a redhead girl - 1/8</p>

<p>Diagram Set
1. Both prokaryotes and eukaryotes have it: a cell membrane
2. Energy source: mitochondria
3. Packaging and secretion: Golgi Apparatus
(Does anybody know what those bumps at the top of the cell were?)</p>

<p>Biomes Set
1. Low shrubs, few trees: grassland
2. High species diversity: tropical rainforest
3. Mostly evergreen trees: coniferous</p>

<p>Plant Diagram
1. vascular tissue: the tube going through the middle
2. chloroplasts: the crowded layer below the very top layer, and the circles floating around in the middle
3. prevents water loss: the cuticle (I think it was 1)…the thin covering on the outside
4. regulates exchange of gas: the guard cells</p>

<p>Ear Diagram
1. membrane that vibrates: tympanic membrane (leftmost thing you could choose)
2. maintains balance: the looped tubes at the top of the diagram
3. the auditory nerve: (rightmost thing you could choose)</p>

<p>Pea Plants Lab:
1. P: GG x gg
2. F2: some yellow plants exist
3. All F1 plants are heterozygous
4. Best explanation: green is dominant to yellow</p>

<p>Plant Lab:
1. Beaker I proves that evaporation wasn’t the cause.
2. Doubling roots does not affect water absorbed (damn…I totally missed this)
3. Leaves cause the difference between II and IV. (missed this too, see above)
4. Why is there no water loss if petroleum jelly is smeared on the leaves - blocks stomata</p>

<p>Animals (with Dichotomous Key)
1. dugesia for picture IV
2. dugesia for closest to earliest animals
3. vespa for belonging to most diverse class
4. II (the spider) for jointed appendages, exoskeleton</p>

<p>Guppy Lab (this was insane)
1. I put cichlids ate more guppies than killifish (I had no clue, just guessing)
2. Breeding period is inherited?
3. If killifish became predator of guppies, then mature guppies will be bigger</p>

<p>ECOLOGICAL</p>

<ol>
<li>Protists were not the ancestors of animals, plants, and fungi (grrr…got this wrong)</li>
<li>Nitrogen fixing legumes reduce need for fertilizer</li>
<li>Spiders use appendages for poisoning, sperm transfer, NOT flying</li>
</ol>

<p>C3/C4 cycle
1. 28 degrees
2. C3 plants become more inefficient because stomates close?
3. Crabgrass utilizes CO2 at a lower concentration.</p>

<p>Zebra (another tough one)
1. I put striped tail as the link between quagga and zebra, but apparently quagga don’t have striped tails? Darn.
2. Grevy’s and Mountain zebra are closest (I think I put that)
3. Quagga are a modification of the plains zebra, not a separate species?</p>

<p>Watershed (a lot of reading…)
1. evapotranspiration in Watershed 1 had lowest percent change
2. NO3 experienced greatest change
3. last question, doesn’t prove that fungi absorb more nutrients or something</p>

<p>MOLECULAR</p>

<p>-Can't remember specifics</p>

<p>how can you take both the ecology and molecular tests? i thought it was impossible to do on the same test date.</p>

<p>trees make up part of the environment ............!!!also they spoke about moss and some other thing</p>