- In the diagram, which statement correctly describes the role of
bacteria/fungi?
(A) The bacteria/fungi convert radiant energy into chemical energy.
(B) The bacteria/fungi directly provide a source of nutrition for animals.
(C) The bacteria/fungi are saprophytic agents, restoring inorganic material
to the environment.
(D) The bacteria/fungi convert atmospheric nitrogen into minerals and are
found in the nodules of cacti.
(E) The bacteria/fungi consume live plants and animals.
- When resources are scarce, (A) prices go down
(B) recycling is not profitable
(C) investment and potential profits decrease
(D) there is an impetus for conservation
(E) there is little competition to discover new or substitute products 35.
Examine the three age-structure diagrams below:
Which of the age-structure diagrams above would be typical for a country
experiencing a rapid rate of population growth?
(A) A
(B) B
(C) C
(D) B and C
(E) None of the above