In 2008, researchers discovered a genetic mutation in a man that took place 6,000-10,000 years ago. He that is thought to be the first person to have the mutation that resulted in blue eyes, and would therefore be the source of all blue-eyed humans alive on the planet today. 

Match the correct letter in the diagram with the correct term from the word bank. Each word is only used once. (4 points)

In the MPN test, what is indicated by the formation of gas in the Durham tube?

True or False: Thermophiles are typically found in hot environments like compost piles or thermal vents.

After the presumptive test in the MPN method, what is the next step?

True or False: UV light is effective in both shaded/covered and unshaded/uncovered areas.

Which of the following statements best describes the purpose of acid-fast staining?

What happens to bacterial enzymes when the temperature exceeds their optimum range significantly?

Which of the following properties does a Spectrophotometer measure?

Which of the following best describes the term “Optimum temperature”?