<p>Does anyone predict the essay questions? also what is the curve range.</p>
<p>I think we may see an animal behavior and diversity question.</p>
<p>strong prediction for dissolved oxygen lab</p>
<p>k. when did it last come</p>
<p>Apparently all the teachers have been hinting at it.</p>
<p>ahh. too bad we didn't do that lab. haha. now i'm gonna fail.</p>
<p>i'm hoping that there is no complicated body system question... like explaining a body process. my teacher never reached the body system unit. i self-studied but i'm still scared.</p>
<p>how in-depth do they questions get? are they usually over a process/cycle you have to explain?</p>
<p>sp91 -- Animal diversity meaning names of all the phyla??</p>
<p>learn it...it really isn't that much</p>
<p>just make key associations with each phyla</p>
<p>don't over-do it though</p>
<p>yeah, all the phyla. i havent memorized all tho i can prob recognize which 1 one is talking about</p>
<p>u kno. we may get an ecology question- i dont remember it being there in the past few.
i think we may be safe on chi- square- it came 4 years back- 2003.
can some1 please teach me how to measure net productivity, I can't seem to understand.</p>
<p>Design an experiment.</p>
<p>Net efficiency, you mean? It equals NNP/GPP - net production over gross production, or (GPP - R [respiration for plants])/GPP for plants, and product [growth] /assimilation [ingested] for consumers, usually all given in kcal.</p>
<p>Chi-square would suck beyond all reason.</p>
<p>Net productivity is the amount of oxygen produced by photosynthesis - amount of oxygen used up by respiration.</p>
<p>Gross productivity is the amount of oxygen produced by photosynthesis. </p>
<p>So if we measure the change in O2 in a container with a plant performing photosynthesis, then that is net productivity. If we then measure the change in O2 of the same plant when in dark(i.e. no photosynthesis), then that is the amount of oxygen produced by respiration.</p>
<p>We subtract the amount of oxygen used by respiration from the net productivity to get gross productivity.</p>
<p>net productivity - respiration = gross productivity</p>
<p>Let's say net productivity is 10 L O2 and respiration uses 3 L O2.</p>
<p>10 - (-3) = 13 L O2 produced by photosynthesis</p>
<p>Ah, so we're defining by plants only? O_o</p>
<p>I haven't seen it used in any other context, but if it did then just remember this simple formula:</p>
<p>net production - use= gross production</p>
<p>Gross is another way of saying "not accounting for stuff used".</p>
<p>Anybody got good review for nervous system. Not the action potential and molecular stuff, but the entire system with structure/function?</p>
<p>Which means you miswrote your equation - should be: GP-Use = NP.</p>
<p>And I...already gave the general form in the post before your earlier one... :p</p>
<p>No, my formula is correct if you make use negative.</p>
<p>Say net production is 13 L and use is 2 L.</p>
<p>13- (-2)=15 L gross productivity.</p>
<p>However, your formula is less confusing so I'll stick to it.</p>
<p>GP-Use=NP</p>
<p>15 -3=12 L</p>
<p>thanks.
lol i was kinda bored cause i already did ok on bout 4 practice tests and took an SAT math1- scored 760 lol.</p>