<p>for most diver, i mut marine! because think about it, water takes up most of earth, so shouldn't it be logical to think that it has the most biodiversity?</p>
<p>it was 0.1% because you start with 100%</p>
<p>so it was 100%
then 10%
then 1%
and the last one was 0.1%</p>
<p>yea i'm pretty sure it's coral reef</p>
<p>OK, I'll do a recap about the evolution thing:</p>
<p>Chordates Must go after echinoderms (they are two different phyla): that means that the starfish comes first.</p>
<p>Sharks come after: they are cartilage fish, and come even before bony fishes.
After is the Reptile (t-Rex): Reptiles are the first amniotes, and therefore the duck cannot be before the reptile.
The Duck is the final one: birds evolved from reptile (which is why birds have keratinized leg SCALES, like reptiles; this is a homology, not an analogy)</p>
<p>Now, what I know about the whale is that it's a mammal, so it has be very related to the primates. What I'm doubting is how to put the whale on the fossil record. The Campbell textbook shows that mamals share a common ancestor with reptiles before the birds did. However, I don't know if the whales actually appeared in the fossil record before t-Rex did.</p>
<p>I found the test to be slightly harder than the one I took in the Real SAT subject test book. Hopefully, 2-3 errors still yields perfect.</p>
<p>Sorry for the repost. I decided to answer some questions I remembered.</p>
<p>"does anyone remember the answer to the question where a plant makes more oxygen during the day and not so much during the night and there was a control?"</p>
<p>Yeah, the thing showed that plant photosynthesis occurs at a faster rate than their own cellular respiration during the day, and the cellular respiration occurs faster during the night than photosynthesis (which is obviously nonexistent).</p>
<p>one of the answers was dehydration synthesis and another question related to this was water?</p>
<p>THe product of dehydration synthesis is the polymer + water</p>
<p>BIO M:
mitosis diagram. in photo II, it's the chromosomes that separate right? or was it alleles.</p>
<p>Segregation of Chromosomes (alleles merely follow the chromosomes). Segregation of alleles occurs during MEIOSIS (both crossing over and chromosome separation in Meiosis I). the last Molecular questions were on photos of mitosis.</p>
<p>On the other questions, I pretty much had the same as vivisaurus.</p>
<p>"the trophic level was .001 because only 10% goes to the next level. and it went like <em>plants-something-something-last one</em> so the decimal should be moved 3 times to the left"</p>
<p>Actually, I think it was in percentage, so .001=.1%</p>
<p>On the other hand, what do you guys think the curve will be like? I'm super anxious that I got wrong on the clumped distribution question, I want so badly to get 800 :).</p>
<p>one more question. was one of the answers migration? thaaanks.</p>
<p>For the clumped/uniform/random dispersion one.. The Barons book has the following explanations: The most common pattern of dispersion is clumped. Fish travel this way in schools because there is safety in numbers.. </p>
<p>^ I believe one of the choices had something like the fish example. ;/ I got it wrong. Eh.. I'm very tempted to cancel..</p>
<p>for the clumpled, i got to reproduce</p>
<p>i want to get an 800 too! i thought i did extremely well, until i read this thread. lol i think i got 3 wrong and i skipped 1. or 2. I really hope that'll be above 700!!!!!</p>
<p>um i think one of the answer choices was migration</p>
<p>but the answer was random mating</p>
<p>the question had something to do with hardy weinberg</p>
<p>^ Mhm. The question asked about, which of the following would not contribue to a change in allel (Or something like that). Answer was random mating, b/c that would NOT cause changes in allel.</p>
<p>um i think one of the answer choices was migration</p>
<p>but the answer was random mating</p>
<p>the question had something to do with hardy weinberg</p>
<p>THose are the conditions for Hardy Weinberg Equilibrium (same gene frequency each generation). Every single answer violated it, EXCEPT for random mating (which is actually one of the conditions for equilibrium).</p>
<p>"i got to reproduce"
Lol, what do you mean by that? Trying to increase your Darwinian Fitness? :)</p>
<p>For the amino acid one, was it the bond between carbon and the atom to the left, or the bond between H-O and C?</p>
<p>Where are the photoreceptor cells located? Was it the huge gray blob?</p>
<p>What was the beetle graph? </p>
<p>Was the AOB gene therapy one hemoglobin or agluttination reaction?</p>
<p>And, do bicarbonate ions bind with hemoglobin or do they serve as a buffer?</p>
<p>hahaa i think that was that a clumped population increased the species' chances of reproduction</p>
<p>the photoreceptors are located on the retina, so it wasn't teh gray blob. bicarbonate ions serve as a buffer.</p>
<p>Where does fertilization take place?</p>
<p>In the lining of the uterus?
In the lining of the oviduct?</p>
<p>For the amino acid one, was it the bond between carbon and the atom to the left, or the bond between H-O and C?
The peptide forms between the carbon atom of one amino acid and the nitrogen atom of the other amino acid. The answer was the arrow that pointed to the bond between the C and the H-O (because the H-O would be broken off)</p>
<p>Where are the photoreceptor cells located? Was it the huge gray blob?
Photoreceptor cells are located in the retina, which was the arrow slightly above the all the nerve strands on the very left. </p>
<p>Was the AOB gene therapy one hemoglobin or agluttination reaction?
Hemoglobin. Agluttination results when Blood A is transfused to someone with Blood A antibodies (meaning they are Blood B or O). Therefore, AOB gene therapy would get rid of this effect.</p>
<p>And, do bicarbonate ions bind with hemoglobin or do they serve as a buffer?
They serve as a buffer. Bicarbonate = - HCO3. These can react with H+, thus increasing the pH value.</p>
<p>Edit: </p>
<p>"i really want to know the answer to the experiment about photosynthesis. it asked what could you measure? was it oxygen? also, do you guys remember any other of the questions pertaining to this one. there was one about which color had the highest co2 concentration? i put red or the first color on the left... also, between what numbers was the rate the highest. i think i put like 600-650. i could be totally right or totally wrong. i'm thinking the latter.
thanks!"</p>
<p>The answer was oxygen for the first one, b/c photosynthesis releases oxygen. Another question pertaining to this was about "which of the following would be true for an algae found at 500nm (or something like that. It was at the nm where the least photosynthesis was occuring, so the answer was "there would be little concentration of oxygen-seeking bacteria." For the highest photosynthesis abilities.. I put 400-450 nm, because it was at the point that the graph reachest its highest point. </p>
<p>The other question about this pertained to CO2, but I thought it asked for which color would produce the least CO2?</p>
<p>For the amino acid one, was it the bond between carbon and the atom to the left, or the bond between H-O and C?H-O and C
-H-O and C, i put that one. only cuz it had O, which is needed to become water in dehydration synthesis. </p>
<p>i really want to know the answer to the experiment about photosynthesis. it asked what could you measure? was it oxygen? also, do you guys remember any other of the questions pertaining to this one. there was one about which color had the highest co2 concentration? i put red or the first color on the left... also, between what numbers was the rate the highest. i think i put like 600-650. i could be totally right or totally wrong. i'm thinking the latter.
thanks!</p>
<p>Where does fertilization take place?</p>
<p>In the lining of the uterus?
In the lining of the oviduct?</p>
<p>i put uterus.</p>
<p>For the amino acid one, was it the bond between carbon and the atom to the left, or the bond between H-O and C?</p>
<p>It's called Carboxyl group, and yes, it was on the c-o single bond.</p>
<p>Where are the photoreceptor cells located? Was it the huge gray blob?</p>
<p>The receptors are on the retina (the thin layer that coats the inside of the eye)</p>
<p>What was the beetle graph? </p>
<p>No idea (is it Ecology?)</p>
<p>Was the AOB gene therapy one hemoglobin or agluttination reaction?</p>
<p>AOB genes code for surface glycoproteins, so hemoglobin is not affected (hemoglobin carries oxygen, and does not function in immune recognition)</p>
<p>And, do bicarbonate ions bind with hemoglobin or do they serve as a buffer?</p>
<p>They serve as a buffer: they are formed from weak acid (carbonic acid) and can recombine with H+ to react to changes in pH.</p>
<p>really want to know the answer to the experiment about photosynthesis. it asked what could you measure? was it oxygen? also, do you guys remember any other of the questions pertaining to this one. there was one about which color had the highest co2 concentration? i put red or the first color on the left... also, between what numbers was the rate the highest. i think i put like 600-650. i could be totally right or totally wrong. i'm thinking the latter.
thanks!</p>
<p>The color for LOWEST CO2 concentration (highest carbon fixation) is in the violet. Yeah, you could measure O2, or the concentration of O2 consuming bacterias (it's called an action spectrum)</p>
<p>Retrospectively, I'm glad I took AP Bio this year instead of self studying it. Do you guys think 2 errors still makes a perfect?</p>
<p>Thanks for the answers, I'll answer yours too</p>
<p>"Where does fertilization take place?</p>
<p>In the lining of the uterus?
In the lining of the oviduct?"</p>
<p>Fertilization is oviduct, but the question asked for implantation, which is the uterus.</p>