<p>Well tony... If the question said when it was decreasing the most, i guess it would be day 2.. I am not arguing that...</p>
<p>however i remember the question saying something about observing, and any question with observing the lowest would be day 4...</p>
<p>I saw no tapeworm question either?
did you take E?</p>
<p>Here is my thing... I looked at the question and thought (this is to easy), and then i thought what tony said and said.. thats kinda tricky, i don't think the college board would do that... </p>
<p>So its between being very easy, and being very tricky</p>
<p>I put reptiles urea :(
i was between ammonia and urea because they need the water so they secrete something concentrated</p>
<p>Omitted that.. had no idea</p>
<p>@NJ: probably tricky... :(
i wouldnt say "very", i was awake i would have choosen 4</p>
<p>uric acid is the most concentrated liquid excretion, and njstudent i agree, i didn't know if they were trying to be tricky or give a free question. obviously i chose the former</p>
<p>isnt urea more concentrated than uric acid?</p>
<p>Ruella what did you choose?</p>
<p>This test=way harder then college board book test... </p>
<p>May have to retake in october</p>
<p>its uric acid. uric acid is the semifluid stuff. urea is what humans secrete, the liquid</p>
<p>Tropisms are growth responses and Taxis is a movement response. Photoperiodism are responses to changes in the light cycle, so flowering and reproducing at different times of day are definitely cases of photoperiodism.</p>
<p>Urea is filtered by nephrons</p>
<p>A VIRUS won't be removed by ultrafiltration</p>
<p>Pedigree twin brothers, and 5 and 6 must have the allele for their kid to have the disorder.</p>
<p>Carnivorous plants live in nitrogen poor soil. They get nitrogen from the muscle proteins of the insects.</p>
<p>Catalysts would be proteins.</p>
<p>Antibiotic: some of the bacteria must have been resistant. The antibiotic wouldn't have produced a mutation.</p>
<p>By definition, a mutation is a change in DNA. Mutation was NOT post-transcriptional modification (which is RNA capping, splicing and addition of the poly A tail.)</p>
<p>Crosses:
One was dominant and the other was incomplete.
Dihybrid for tall and cut leaves, both dominant.
Any time you cross a homozygous and a heterozygous, the offspring have 1/2 change of being heterozygous or homozygous. </p>
<p>Parathyroid hormone increases blood calcium
Removing the parathyroid glands would decrease the amount of PTH
Low calcium would cause the body to increase blood calcium
One more question I can't remember...</p>
<p>Insects and crustaceans have chitinous exoskeletons</p>
<p>Root phloem cell able to become another type of cell: inactivated genes can be reactivated.</p>
<p>Angiosperms can reproduce asexually (unlike most vertebrates) and dont make cones.</p>
<p>Cyanobacteria have no nucleus</p>
<p>All cells have a membrane</p>
<p>Nitrogen fixation turns N2 into usable something</p>
<p>Climax community = stable composition of species</p>
<p>9 eating 8 was predations</p>
<p>Reptiles excrete uric acid</p>
<p>Random mating would NOT change allele frequencies</p>
<p>Two snails with common ancestor could not be CONVERGENCE</p>
<p>Birds dont have teeth</p>
<p>Grassland/tropical rainforest produce food for humans...the grasslands around the world are farmed and produce most human food, although the rainforest has the most biomass overall. Tough call, but I think grasasland is correct. Those countries with grasslands were able to form large cities based on agriculture (read "guns, germs and steel" by Jared Diamond).</p>
<p>Labeled Oxygen in CO2 or H2O. Plants can use O or O18, O2 is a waste product exclusively from H2O.</p>
<p>Tay Sachs enzymes in lysosomes</p>
<p>Microtubules assist in movement/locomotion</p>
<p>pH = 4 (10-4)</p>
<p>Blood type O for kids parents are both O.</p>
<p>Sheep and wolf NOT at same trophic level</p>
<p>Petri dishes on side were responding to gravity: seed roots grew DOWN no matter which direction they were facing on the petri dish.
Vine was responding to touch
All effects were mediated by hormones (gravi-, thigmo and phototropisms)</p>
<p>Terrarium: three trophic levels
O2 fluctuates, hi in day, lower at night</p>
<p>Echinoderms and chordates are dueterostomes
Mollusks, arthropods and annelids are protostomes </p>
<p>TAT production lag time due to synthesis of RNA
Glucocorticoids are NOT proteins (steroid hormones exert their effects by altering gene transcription).</p>
<p>"Catalysts would be proteins." dont they lower the activation energy?</p>
<p>Random mating would NOT change allele frequencies.. this in E section?</p>
<p>Yes enzymes lower activation energy</p>
<p>Root phloem cell able to become another type of cell: inactivated genes can be reactivated. what section was that in?</p>
<p>catalysts do lower activation energy and don't have to be proteins, enzymes are protein catalysts</p>
<p>so the answer to the catalyst question is lower activation energy since the question didnt specifically address enzymes?</p>
<p>the DNA question... is 5 side is the same on both and the 3 side is the same on both right?</p>
<p>yeah NJstudent. if you followed the path it was 5' to 3' and 3' to 5'</p>
<p>@ misschatterbox
I think so~ that's what i put anyways :D</p>
<p>i chose day 1</p>