Any suggestions

<p>I did poorly in May's SATII, here is my score.Did I've to take it again?
I'm a Chinese student.</p>

<p>Math 800,Physics 780,Biology 720</p>

<p>Welcome comments,I'll applied for Princeton or U of Chicago/Stanford</p>

<p>Is this some sort of sick running joke that people post great SAT II scores and complain?</p>

<p>If for some weird reason you were serious, no do not bother taking them again. Bio is still a great score considering the harsh curve on that test.</p>

<p>Thank you for your advice.I'm not joking or mockking towards anyone.They told me that competition between international students is very hard.So I post to ask.</p>

<p>most students from the united states would be happy with those scores, they are very good</p>

<p>emm..I pledge I'll do perfect nextime! I'll take Biology,World History,English Literature.</p>

<p>Oh, sorry. Missed that part about International application. I would definitely retake bio in that case then.</p>

<p>....this means I've to pay at least 500$ more</p>

<p>You don't need to take Biology,World History,English Literature... You only need 3.... So just retake your Biology and you're done..</p>

<p>I want to enhance my ability...So I take the test not only to get a good mark, but also want to learn some humanities.</p>

<p>BTW:If any one has some specific science problems unable to solve, I may be able to help.Though I didn't do perfect on tests.I'll take Chinese national college examination in June 8th.So your questiones will help me consolidate my material.
Science means introductory level physics,chemistry,biology,and college level math.</p>

<p>forgot..of course,You can ask any questiones about Chinese.</p>

<p>OK, please explain the afferent-efferent neuron relationship.</p>

<p>We know that nerves were made up by neurons.And any one neuron need to obtain or pass information through other neurons.For example, eyes sense the light, and send a signal to brain through nerves.Then we realise there is light.</p>

<p>In biological terms this was called afferent-efferent neuron.Every neuron has at least one dentrite which could receive information as "action potential" occurs.The action potential passes through the cell body to axon, which send information to another neuron.Of course, the other neuron also needs a dentrite to "pass" action potential. And the connection place was called a synapsis. Because now action potential was transmitted, neurons had to rely on different neurontransmitters to finish the transmission.</p>

<p>you may find more information related to this in here:
<a href="http://www.sparknotes.com/testprep/books/sat2/biology/chapter9section1.rhtml%5B/url%5D"&gt;http://www.sparknotes.com/testprep/books/sat2/biology/chapter9section1.rhtml&lt;/a&gt;&lt;/p>