(Solved): -27- (Option C, question 16 continued) Cane toads in their native range in Venezuela breed in clear ...

(Option C, question 16 continued) Cane toads in their native range in Venezuela breed in clear water with a pH only slightly higher than neutral (

). Fieldwork in northeastern New South Wales, Australia, showed that natural water bodies varied in

from

to

. Laboratory investigations were conducted to look at the effect of this range of

on the hatching and body length of cane toads.