<p>@XCsupremacy</p>
<p>Everything you said is exactly right.</p>
<p>^ I'm pretty sure its ribosome..</p>
<p>wait!! so what's the answer... golgi apparatus or plasma membrane?? I personally think it is plasma membrane since carbohydrates of membranes are attached to protein or lipid as glycoprotein or glycolipid....
and what's that question about most mass: nucleus on the list of answers.. I can't remember anything.... :(
oh and was the mantle secretes shell question one of the core questions or just E??
and another thing.. can someone reiterate the protein synthesis radiation/fertilization question please...?? it'd be really helpful..</p>
<p>did anyone get B C D evolved from E for the phylogenetic branch</p>
<p>r u sure that it was only 4 trophic levels?</p>
<p>There were only 4 trophic levels. I remember that question.</p>
<p>realli i got 5 tropic levels. oh no not another wrong =(</p>
<p>i got 5 trophic levels as well</p>
<p>oh i put 4 trophic levels too</p>
<p>WIKIPEDIA:
(In the embryo, the liver is the main site of red blood cell production.) The production can be stimulated by the hormone erythropoietin (EPO),</p>
<p>The liver converts ammonia to urea. IT DOES NOT DEAMMONIFY UREA. I FOUND THIS ON WIKIPEDIA... so i guess YOU ALL got it WRONG.... I didn't even take the june sat2, i took may.and i've taken ap bio.. but i wanted to see how i could help.</p>
<p>bone marrow makes rbc not the liver</p>
<p>Okay so its golgi apparatus????? which is what i put :D</p>
<p>and then the bird one is NOT introduce a new species???....:o</p>
<p>FROM WIKIPEDIA:
The process by which red blood cells are produced is called erythropoiesis. Erythrocytes are continuously being produced in the red bone marrow of large bones, at a rate of about 2 million per second. (In the embryo, the liver is the main site of red blood cell production.) </p>
<p>SO TECHNICALLY RED BLOOD CELLS ARE STILL PRODUCED IN THE FREAKING LIVER... BESIDES THE LIVER DOESN'T DEAMMONIFY UREA.... SO STILL.... I'M RIGHT.... AND EVERYONE WHO PUT RED BLOOD CELLS,, IS WRONG.</p>
<p>...uh no. most bio books dont even metnion that RBC are produced in embroys or whatever. also, the collegeboard doesn't test nitty gritty detials like these. so i'm sorry to say but i think, and so do a majority of ppl, that the answer was that the liver DOESNT make rbcs.</p>
<p>take a chill pill ;o</p>
<p>I checked my PR book, "All blood cells are made in the bone marrow"</p>
<p>and where in your bio book does it mention that the liver deammonifies urea???????? that is what i thought.... don't get mad, cause u didn't learn it in grade school..... it's called the fact of life........it just is..</p>
<p>u are looking at a general bio book.... go look on the internet.... and get a more in depth book....</p>
<p>Hun, it mentions that the liver converts ammonia to urea on wikipedia....under physiology:</p>
<p>1)The liver produces and excretes bile (a greenish liquid) required for emulsifying fats. Some of the bile drains directly into the duodenum, and some is stored in the gallbladder.
2) The liver converts ammonia to urea.
3) The liver stores a multitude of substances, including glucose in the form of glycogen, vitamin B12, iron, and copper.
4)The liver breaks down toxic substances and most medicinal products in a process called drug metabolism.
5) In the first trimester fetus, the liver is the main site of red blood cell production.</p>
<p>I'm not saying that you're completely wrong. You're right that livers do create red blood cells, its just the other choices happen in adults, embryos (i think?) and everything. making RBCs just happen in the embryo, so the other choices are better, making the last option (RBC) the weakest one and thus being the right answer. (Hope that made sense...)</p>
<p>BTW: all the above stuff is taken from wikipedia (the list)</p>
<p>GA you need to calm down and get a life</p>