Can someone simplify these topics..... 1. Ovulation, and the role each hormone plays as far as negative and positive feedback. - though i had this straight but apparently not... 2. Hardy Weinberg equilibrium..(simplified!) 3. The Nephron - the way I have it straight right now.. the glomerulus within the bowmans capsule filters due to the effect of bp, then passes through the distal convoluted tubule down the descending loop of henle where water passivley flows becomes less concentrated. The ascending loop of henle water passively flows out and cl- is actively transported in. Then passes through the proximal tubules where Vasopressin acts to reabsorb water??(anything else here) and on to the renal artery and into the collecting duct which connects to the bladder. This is off the top of my head if I am missing details can you fill me in. any other topics that you may be unclear on feel free to post and I will do my best to starighten out any topic that I may be knowledgable on.