<p>@satman
You’re wrong as it becomes an embryo after 5 weeks of pregnancy.</p>
<p>“The fifth week of pregnancy, or the third week after conception, marks the beginning of the embryonic period. This is when the baby’s brain, spinal cord, heart and other organs begin to form.”</p>
<p>I put the specialized function for the unicellular multicellular
process of elimination for that one</p>
<p>No satman it was intracellular communication for the answer choice which is wrong. I put differentiated cells.</p>
<p>But the answer choice for that was intracellular instead of intercellular</p>
<p>and @biofun,<a href=“http://en.wikipedia.org/wiki/Implantation_(human_embryo[/url])”>http://en.wikipedia.org/wiki/Implantation_(human_embryo)</a></p>
<p>question with fertilization
biofun might be right here. When I took the test, I used process of elimination and got to that one. However, I didn’t put it because I also thought it referred to the whole life. It was confusing</p>
<p>I’m pretty sure it was genetic drift. Those individuals were affected by random chance. Directional selection just selects traits favored towards one extreme.</p>
<p>@satman you think the prokaryote one is right that they don’t have noncoding sequences? I wasn’t too sure though</p>
<p>@jtalley24 what do you mean by the pulmonary and aorta are both two way?</p>
<p>what the heck did we need to know implantation for?</p>
<p>yes, prokaryotes do not have introns, while eukaryotes, have both introns and exons</p>
<p>Yea satman you’re right. It’s endometrium.</p>
<p>@biofun one of the choices was that the pulmonary vessels and the aorta will both pump blood in two directions from the heart (pulmonary vein/artery, ascending/descending aorta, but everyone seems to think it’s the left and right one)</p>
<p>my reasoning for the unicellular vs. multicellular one is that unicellular ones don’t need specialized cells, because they do everything within that one cell. But intra (or inter) allows an organism to do high functions (allows hormones to function, neurons to communicate, etc.) allowing us to be better</p>
<p>@Biofun:</p>
<p>But the answer choice mentioned it happening throughout life. The cycle stops during menopause.</p>
<p>so for the couple of questions that asked about evolution and such.
I got genetic drift, adaptive radiation, divergent evolution, and I think there was another that I forgot about.</p>
<p>@satman sweeet, curves? I feel like I’m going to get minus 5 total, what would that be?</p>
<p>jtalley24 the aorta only pumps blood out. The vena cava returns blood to the heart.</p>
<p>@jtalley24:</p>
<p>I didn’t like the way that question was worded @<a href="mailto:@">@</a>… That answer choice made it sound like the heart was cut in half.</p>
<p>Is the answer that there are 2 way valves?</p>
<p>Single celled organisms can still communicate between each other @satman.</p>