(a(i))[1]
Gorillas are mammals, and they possess features found only in mammals, not in any other vertebrate group. State one mammalian characteristic visible in Fig. 2.1.
(a(ii))[2]
State two mammalian characteristics that cannot be seen in Fig. 2.1.
(b(i))[1]
Name the mammal whose average lifespan is 23 years.
(b(ii))[1]
State the mean body mass of a male rhinoceros.
(b(iii))[1]
State the mean body mass of the mammal with an average lifespan of 25 years.
(b(iv))[1]
Describe the link between average body mass and average lifespan shown in Fig. 2.2 and Table 2.1.
(c)[3]
Suggest three factors that would improve the chance of a man living longer.