Figure 20, Photograph of the deven samples
shown in Figure 19

Figure el. Autoradiograph of algae
specific activity

Figure 24,
Figure

25.

91
93

Figure 22. Corals showing white nodules of high
Figure 23.

Page

95

(a)Autoradiograph of goatfish showing

radioactivity in gills; (b)
of fish in (a)

Photograph

(a)Composite photograph of fish used

for autoradiograph (b

(a)Photograph of land plants used for

autoradiograph (b)

97

98-99
100

Select target paragraph3