<p>The amino acid question: tyrosine</p>
<p>No it was most definitely not tyrosine</p>
<p>no the question was asking which plant is most obvious in the littoral zone, which would be water lily. And for the fish, the freshwater one does not drink water. It enters via osmosis. What did you guys put for the survivorship curve and the sponge question? btw the trophic level one was 0.001</p>
<p>and i would also like to know what the answer for the plant deficiency and chromatography were 
Did you guys get .38 for part 1 of C?</p>
<p>Reasonably sure the answer was sulfur. But wouldn’t liverworts be in the littoral zone? </p>
<p>What was the sponge question?</p>
<p>Yeah, 3/8 to be exact. </p>
<p>Alright cool, I put sulfur too. But the question asked for the most OBVIOUS plant in the littoral, which kind of made me confused. Water lilies would be the most blatant, and perhaps they don’t count the shoreline as littoral?
The sea sponge question was the very last one in part A, and it circled some random piece of crap on a diagram of it and asked us what it was. I couldn’t even make out the shapes let alone distinguish what it was -_-
So I guessed… respiratory i think
And oh crap I just realized it was a sea sponge, not a cucumber</p>
<p>That was the last question on part b. I put gas exchange but I think it was feeding </p>
<p>hmm was there a feeding option? Well I was assuming it was a cucumber so that’s probably right</p>
<p>It was a cucumber…</p>
<p>…I’m done</p>
<p>@spazzer4501
I am pretty sure it was Tyrosine. The choices listed and their rf values are:</p>
<p>phenylalanine 0.68</p>
<p>tryptophan 0.66</p>
<p>tyrosine 0.45</p>
<p>proline 0.43</p>
<p>histidine 0.11</p>
<p>The third spot was definitely tyrosine.</p>
<p>lol i think i guessed that one right</p>
<p>@Disaccharide you are assuming the rf is some immutable constant. It varies for the types of solvents used in the chromatography. And in the context of the question it stated that in the solvent/material used the most nonpolar substances would travel furthest. Because tyrosine was the only polar amino acis it could not be the answer. Rather it was likely the amino acid that traveled the least </p>
<p>I knew it!</p>
<p>wait can someone explain why part 1 of C was 3/8? because if it is im screwed…</p>
<p>I put tryptophan because it has the most number of double bonds and the question said something about more pi bonds so i figured it was asking for double bonds </p>
<p>I put tryptophan as well but I don’t think its right </p>
<p>alright. the husbands of the identical twins were brothers.</p>
<p>Since they are identical twins we can treat their sons as being born to the same mother but different fathers.</p>
<p>And, if their fathers weren’t related the cof would be 1/4</p>
<p>but since they are brothers the cof is 3/8</p>
<p>could it be phenylalanine. There are 3 amino acids that are more non polar than it, so two of those could be the first two values and the third would be phenyalanine?</p>