**OFFICIAL SAT Biology E/M June 2013 Exam**

<p>^agree yalehopeful</p>

<p>@yalehopeful yes, @teenuh ecology?</p>

<p>@hiddenmelody i don’t think it said “valves”</p>

<p>@asiansexy ok that’s what I’m saying, i chose the one that talked about aorta and pulmonary and said nothing about valves.</p>

<p>“The heart is divided into four chambers or “rooms”. You can compare it to a duplex apartment that is made up of a right and a left unit, separated from each other by a partition wall known as a septum (pronounced SEP-tum)”</p>

<p>maybe his helps</p>

<p>@jtalley 24 molecular</p>

<p>@satman the definite beetle answer (in general bio) was backwards j curve</p>

<p>@teenuh now i remember that one, that was talking about homologous structures and i put wings of butterfly and pats, not dog paws and flippers. Any confirmation?</p>

<p>The answer about the aorta and pulmonary is also wrong. It said the aorta is part of pulmonary circulation, which is incorrect. Isn’t it part of systemic circulation?</p>

<p>pretty sure the homo. structure one was the dog paw and whale flipper.</p>

<p>@hiddenmelody how certain are you that it said that, i mean it’s only 1 and 1/4 pt.s so im not gonna stress it</p>

<p>yes, homo. structure was definitely the dog and whale. I just looked it up</p>

<p>im pretty sure aorta can be considered pulmoary cause of oxygenated blood</p>

<p>and does anyone know if colleges really care about different scores 750-800 on bio m in admissions? like see a real difference in considering an application between for a 790 vs 760 for example?</p>

<p>the pulmonary and aorta are different. pulmonary vein brings blood back from the lungs, then the aortic ARTERY sends it to the body</p>

<p>@satman are you serious that flippers and paws are homologous??? i thought that was any easy question with the answer being bat and butterfly wings?</p>

<p>There’s no doubt that the left and right side are separated. The main difference between bird and mammalian hearts is that the bird heart is partially separated and while the mammalian hearts are completely separated.</p>

<p>yes, dog and whale paw and flipper is homologous (they developed from the same common ancestor and have the same structure.) Bat and butterfly are analagous. they are from diff. ancestors and developed similarly because of a similar niche or environment</p>

<p>@satman nvm s***! I mixed up analogous and homologous after looking it up, now i’m at like minus 6 predicted…</p>

<p>Highest my raw score could probably be is a 65-67, and that’s assuming I miss nothing else. I’m thinking I’ll probably end up in the high 600’s.</p>