(a)[1]
Put an X on Fig. 5.1 to show where the bladder is.
(b(i))[1]
State the mammal species that produced the smallest urine volume in Table 5.1.
(b(ii))[1]
State the mammal species with the largest range shown in Table 5.1.
(c)[3]
Explain why the amount of urine produced in humans may change over the course of a day.
(d(i))[1]
State the name of the organ from the list that makes urea.
(d(ii))[1]
State the name of the organ from the list that removes urea from the body.
(e)[1]
State the name of the gas excreted by the lungs.