Question

Scientists are interested in determining if selenium, from a nearby mine, magnifies in the tissues of fish living in a lake. Which of the following best describes a testable hypothesis for the study?
a.Tissue from fish in the lake will have a higher level of selenium than tissue from fish in a nearby lake.
b. Selenium will be at a higher concentration in fish tissue than in the tissue of fish prey.
c. Fish will have a higher concentration of selenium than mercury in their tissues.
d. Selenium will be at a higher concentration in acid mine drainage than in fish tissues.

Answer 1

Answer:

The answer is A.

Explanation:

To test if the selenium from the mine has an effect on the fish living in the lake which i assume is close to the mine, testing the tissue of the fish from that lake and comparing it to the selenium levels of the fish from a nearby lake would be a testable hypothesis because there is a comparable aspect and there should be a difference in the numbers between the fish from the two lakes because of their distance to the mine.

I hope this answer helps.