The revision section (BIOLOGY)

Messages
385
Reaction score
954
Points
103
See there's a chapter on heredity in our course. I cant find it anywhere in the revision section of xtremepapers!
 
Messages
385
Reaction score
954
Points
103
the only thing i dont get is in excretion. like when the cappiliries take all the nutrients back from collecting duct in the kidney, why doesnt it take the waste products back too? i mean diffusion is suppose to happen because the concentration of the waste products is lower in the cappiliries but higher in the collecting duct.
 
Top