(a)[1]
State the meaning of fitness here.
(b)[4]
Suggest two features of J. jaculus that help it deal with each of the following desert challenges: (i) very high daytime temperatures (ii) very little or no light at night
(c(i))[2]
Use the information in Table 2.1 to finish the pyramid of biomass in Fig. 2.2.
(c(ii))[1]
The scientist observed the detritivores and decided to include them with herbivores in this pyramid of biomass. Suggest what the scientist found out about the detritivores that led him to make this decision.
(c(iii))[2]
Explain why ecosystems seldom contain more than four or five trophic levels.
(c(iv))[3]
Explain the advantages of presenting information about food webs as a pyramid of biomass rather than as a pyramid of numbers.