BIO- official post discussion

<p>Does anyone remember what the ecological role of bacteria was? I put the ammonia one because of the nitrogen cycle. Anyone?</p>

<p>Yeah it was ammonia. They have a question about the nitrogen cycle on every bio test it seems so that’s definitely the correct one.</p>

<p>I put the nitrogen ammonia too. My first response to the question was bacteria are decomposers and nitrogen recyclers… not 100% sure though.</p>

<p>I just got a flurry of questions in my mind. </p>

<p>On that phylogenetic tree type thing, the segmented versus unsegmented was A. right because platyhelminthes and annelida</p>

<p>On dorsal and ventral nerve cord I differentiated between mammals and birds. Is that right?</p>

<p>Which contains more biomass? Decomposers (fungi) or Plants (shrubs)</p>

<p>On the female population is 50% chart, Was the age 80 or 85 because it was in between 40% and 75%</p>

<p>If the large intestine was removed, what would occur? Watery feces, malnutrition, or weight gain. </p>

<p>Then there was one about carbon being in a rock and not being able to contribute to photosynthesis. What was up with that?</p>

<p>The carbon/rock question- I said it was too slow in the carbon cycle or something like that</p>

<p>And large intestine removed- Doesn’t the large intestine deal with absorption? So would watery feces be right? lol</p>

<p>I think you had E because I don’t recognize some of those questions.</p>

<p>I said the same things on the phylogenic tree, watery feces (eew lol), and for the carbon/rock one I said it takes a long time for it to enter the cycle or something like that.</p>

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<p>Correct.</p>

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<p>No, it’s between Chordates and whatever none cordates.</p>

<p>Watery feces for the large intestine, and the carbon in a rock means it circulates slowly.</p>

<p>Agreeing on segmented vs. unsegmented.</p>

<p>Dorsal vs. ventral was the one involving chordates and annelids or some kind of worm or invertebrate.</p>

<p>Plants have more biomass.</p>

<p>I put watery feces. Most nutrients are absorbed before then.</p>

<p>I put that carbon comes from rocks really slowly or something.</p>

<p>Damnit Truthsmoker is right about the ventral nerve cord because it is in arthropods. So that is 3 wrong</p>

<p><a href=“http://en.wikipedia.org/wiki/Ventral_nerve_cord[/url]”>http://en.wikipedia.org/wiki/Ventral_nerve_cord&lt;/a&gt;&lt;/p&gt;

<p>dammit, me too, that’s 3 wrong.</p>

<p>for the biomass, i put the herbaceous plants,</p>

<p>for the female population, i put age 60 because between ages 60-69, only 23 were alive, which is exactly half of the original 46</p>

<p>If anyone remembers any more questions, ask! </p>

<p>Okay, so the questions answered so far:</p>

<p>Mendel said nothing about- crossover
somatic body cell of 24- 12 from each parent
APES- not the brain cavity =(
Farm runoff- decrease in eutrophication?
Bacteria 5- produced toxins
pH 4.5 - 5.5- H+ decreasing
Bacteria #6- came from water
Really high concentrations- balanced fertilizer
Soil most likely to resist temp. change- wooded forests
Calvin Cycle- bundle sheath cells
Archaebacteria- similar to eukaryotes
Segmented seperation- annelids(earthworms)
light reactions equation- H2O -> O2
Pea genetics question- 50%
Wool genetics problem- 3/4
Cytosine- Guanine
Bases per Gene- 1000
Restriction enzyme- A
Colorblind Son genetics problem- 1/4
Bacteria- ammonia
Greatest Biomass- plants
Carbon Rocks- comes too slowly
Ventrel nerve cords- arthropods
Large intestine- watery feces</p>

<p>for those of you who had ecology, when they asked you which graph showed interspecific competition, did you put only one graph (graph 1), or two graphs (graph 1 and 3)?</p>

<p>I asked this and it wasn’t answered… Which population will be able to adapt to change the best?
Populations 4, 5, and 6? They’re the largest interbreeding groups.</p>

<p>Plant experiment.
Control for 4 was 1, 2, and 3?
The substance causing root growth is IAA?</p>

<p>nice I am happy</p>

<p>^ Location of the gene for the conjugating bacteria one.</p>

<p>csquare: yes I got everything you got. IAA is an auxin, so that works.</p>

<p>Yep, I put 1 2 and 3 as well. </p>

<p>Overall, this thread has been giving me pretty goods news =)</p>

<p>what did you guys put for the one where you had to cross a tall red plant by what genotypes in order to find out if it’s homozygous or heterozygous? i put the one where it’s completely recessive. ttrr or something.</p>

<p>Yes to both cquared and kin3sis</p>

<p>I agree, I think I did pretty well as a result of this thread.</p>

<p>Let’s say I got 4 wrong…what is that most likely going to be?</p>

<p>For Bio-M, there was a question about nitrogenous bases, and which one of the following could be one or something. The choices were guanine, thymine, uracil, adenine, and ATP. What was the answer?</p>

<p>Also, the Mendel one I’m not sure the answer was crossing over. I put B, which said something about two factors being inherited (at the same time), which was suggestive of linkage. I know Mendel did not discover linkage, so I don’t htink it’s crossing over.</p>

<p>Also, does anyone know if this would be considered a hard or easy Bio Sat II. Or in other words, would the curve be good or bad?</p>