June SAT Biology E/M Pre/Post Test

<p>Lol i thought he said phototoxic so I didn’t think there were any. But yeah there was one phototaxis.</p>

<p>somestudent2: oh yeah…that one is weird…should be 2000 but theres no choice for that…i skipped it</p>

<p>i said 1400</p>

<p>how???</p>

<p>cuz i think the left one on the electrophoresis thing was only a measurement tool for the actual digestion…?</p>

<p>only the right picture counts.
600+500+300</p>

<p>Oops. wrong</p>

<p>add the three bands together
600+500+300=1400</p>

<p>the pic on the left is only to get measurements (it’s just a ruler)</p>

<p>it said Standard Blah Blah Blah… and i got 2000 to begin with, but that wasn’t any of the choices, so i kind of thought the one on the right was the actual experiemtn</p>

<p>what about for the one that said like how do scientists gain evidence about bone stuff from gaps in the fossil record?</p>

<p>wait…what was the question… it asked for the molecule left after the digestion?</p>

<p>Does anyone remember a question about how NaCl affects our body or something like that? One of the answer choices was about neurons.</p>

<p>@stevenydc… it said the total length of the DNA. the experiment was where EcoRI digested the DNA molecule (cut it up into small pieces)</p>

<p>ok i skipped that one anyways…</p>

<p>ericr… i siad DNA …</p>

<p>I put the neuron one</p>

<p>NaCl provides Na+ which gives Na for the sodium/potassium gradient for neurons.</p>

<p>yeah, i also put neurons. woohoo</p>

<p>did you guys put the nail stayed in the same place in the tree bc it was apical meristem/ vascular cambium?</p>

<p>:'( lost a easy point damt…
hkim: yeah i skipped that one too:D</p>

<p>Bio-M again: same proportion of thymine. “Closely related in evolution only” was what I put</p>

<p>catcat i did</p>

<p>@somestudent2… i said it was the same percent G and C</p>