(a(i))[1]
State the organ responsible for producing urea.
(a(ii))[1]
State the name of that component.
(b)[6]
Identify the structures M, N and P on Fig. 8.1. Give a function for each structure. Record your answers in Table 8.1.
(c)[2]
State the names of two additional components of urine.
(d(i))[1]
State the name of the organ that excretes carbon dioxide.
(d(ii))[1]
State how carbon dioxide is carried around the body.