May 2011 - Biology (E/M)

Test Preparation SAT Subject Test Preparation
141

<p>are you sure it was long gestation? thought the answer was that they both DIDNT have a fluid filled internal embryonic sac…</p>

142

<p>I thoguht it was internal development or somethidng yea fluid filled embryonic sac</p>

143

<p>@akash, Nope. Both are fully developed. Long gestation apparently.
“The short gestation time is due to having a yolk-type placenta in the mother marsupial” I GOT it wrong too. :(</p>

144

<p>I though it was the one surrounded by liquid, since kangaroos dont do that</p>

145

<p>yeah, marsupials have external pouches</p>

146

<p>I read somewhere that some of these questions are experimental and get thrown out. Is this true?</p>

147

<p>dammit 3 wrong
tight junctions
marsupials
motor neurons
can i still get an 800?</p>

148

<p>was isolated population genetic drift?
and the acid rain/something was that fossil fuels or aerosol</p>

149

<p>fossil fuels i think</p>

150

<p>aerosol
fossil fuels release CO2 but acid rain caused by sulfur oxides</p>

151

<p>for isolated population i believe it was mutation, and for acid deposition i think i think it was fossil fuels because they contribute to acid rain. aerosol is usually green house gases no?</p>

152

<p>nvm i think im wrong again…</p>

153

<p>cliffs quote- “the burning of fossil fuels (such as coal) and other industrial processes release into the atmosphere pollutants that contain sulfur dioxide and nitrogen dioxide.”</p>

154

<p>i hate any E type questions in the general section…</p>

155

<p>acid rain question (aerosol) </p>

<p>[Sulfate</a> - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Sulfate]Sulfate”>Sulfate - Wikipedia)</p>

156

<p>collegeboard should remove that Q</p>

157

<p>did we ever decide on marsupial question?</p>

158

<p>im screwed. i hope i at least got like a 780…</p>

159

<p>What was the answer to the question about Darwin’s hypothesis?
Why aren’t roaches different from their fossils? (Ecology)</p>

160

<p>in wikipedia it says “Sulfates occur as microscopic particles (aerosols) resulting from fossil fuel and biomass combustion.”</p>

<p>also what was the multicellular organisms producing different types of cells? was it protein or certain mRNA (M section)</p>