November 2010 - Biology (E/M)

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161

<p>Overheated power plants = less oxygen, I said greenhouse effect</p>

162

<p>okay, first of all: there were no gills. therefore, they were not lungs. also note that there were the obvious parts of the heart atrium ventricle etc.</p>

<p>also: can someone please address what I said about the polydactyl problem and lack of info about homo/heterozygous-ness? i just wanna know if I’m not being delusional here.</p>

163

<p>i put greenhouse effect for which ever one was warmed</p>

164

<p>I put the power plant quetion as transpiration.</p>

165

<p>what was the phosphate one?</p>

166

<p>@nritya</p>

<p>What was the polydactyl on again?</p>

167

<p>For traits overall: one of my answers was 50% and the other was 100%…</p>

168

<p>that power plant question was definitely the hardest one lol, or PCR if you didnt know it</p>

169

<p>yeah, jbeib, i didnt have a clue what PCR was</p>

170

<p>@ goldanao</p>

<p>Transpiration is when plants give off water through stomota</p>

171

<p>phosphate is pollution</p>

172

<p>greenhouse effect doesn’t have anything to do with dissolved oxygen in water…</p>

173

<p>Lol. PCR is often used for DNA fingerprinting. That’s in our A LEvel syllabus. Infact, eff me, I’m so glad I’m doing A Levels, everything I needed was there in what I learnt in school :D</p>

174

<p>I said greenhouse effect for the overheated river one.</p>

175

<p>@goldnano
transpiration is sweating isn’t it?</p>

<p>@nytria
i think u might be right but im not sure about it…
so was one of the anwer like “not enough information” (i did not finish reading the answer choices for the question)</p>

176

<p>^^ I think that’s what I put.</p>

177

<p>@nritya</p>

<p>What did you say then?
It sure as hell doesn’t lead to ozone depletion nor pollution?
CRAP, I think it is that thing when waters lose oxygen, plants/algae grow, fish die etc</p>

178

<p>yes, biology. it is the plants way of sweating</p>

179

<p>PCR (polymerase chain reaction) : amplify (keyword) DNA
this is used in forensics</p>

<p>can anybody rephrase the “phosphate” question please?</p>

180

<p>that one question was not enough info cause it couldve been hetero or homo</p>