Biology, 13.02.2020 21:57 minosmora01

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Baby rainbow trout require a narrow pH range of 7.3 - 7.5 to survive and grow into healthy, reproducing adults. If the pH of the lake these trout are in drops from 7.3 to 7.2, .
A) more baby trout will live to adulthood
B) less baby trout will live to adulthood
C) there won't be a change in baby trout populations

How does keeping lakes at natural, ideal pH levels affect the fish industry?
A) fewer fish are able to survive in the lakes and more money will be made from catching fish
B) more fish are able to survive in the lakes and less money will be made from catching fish
C) less fish are able to survive in the lakes and less money will be made from catching fish
D) more fish are able to survive in the lakes and more money will be made from catching fish

What is one disadvantage of testing aquatic creatures to see what their pH tolerances are?
A.) We can determine the environments where invasive species will survive
B) We can predict how human activities will influence the health of organisms in a lake
C) The aquatic creature(s) may die during the testing process
D) We can learn more about the natural world

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