Can anybody help me with this graph ..its making a wierd shape :/
http://www.xtremepapers.com/papers/...nal O Level/Biology (5090)/5090_w11_qp_61.pdf
Question no 3
http://www.xtremepapers.com/papers/...nal O Level/Biology (5090)/5090_w11_qp_61.pdf
Question no 3