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In 1954, copper waste in the Finniss River killed numerous fish - VCE - SSCE Biology - Question 16 - 2009 - Paper 1
Question 16
In 1954, copper waste in the Finniss River killed numerous fish. This caused various species in the area to die out. However, one species, the black-banded rainbow f... show full transcript
Worked Solution & Example Answer:In 1954, copper waste in the Finniss River killed numerous fish - VCE - SSCE Biology - Question 16 - 2009 - Paper 1
Step 1
B. the ability of their gills to remove copper already existed in 1954.
Answer
The black-banded rainbow fish's ability to filter copper is highlighted in the question. Since this ability enabled them to increase in number despite the copper waste in the river, it is reasonable to conclude that this adaptation was present prior to 1954. The information suggests that they were already equipped to deal with the environmental changes brought about by the copper pollution.