Q: "Lyin' Eyes" is a song written by Don Henley and Glenn Frey and recorded in 1975 by the American rock band the Eagles, with Frey singing lead vocals. It was the second single from their album One of These Nights, reaching No. 2 on the Billboard Hot 100 chart and No. 8 on the Billboard Country chart. It remained their only top 40 country hit until "How Long" in 2007 -- 2008.

Answer this question: who was the lead singer of lyin eyes?
A: Glenn Frey. How to explain the answer? The relevant information is: "Lyin' Eyes" is a song written by Don Henley and Glenn Frey and recorded in 1975 by the American rock band the Eagles, with Frey singing lead vocals.

Q: If a player is claimed and the waiving team exercises its rescission option, the waiving team may not use the option again for that player in that season -- a subsequent waiver would be irrevocable with a claiming team getting the player essentially for nothing. If no team claims a player off waivers after three business days, the player has cleared waivers and may be assigned to a minor league team, traded (to any team), or released outright.

How long is a player on waivers in mlb?
A: three business days. How to explain the answer? The relevant information to answer the above question is: If no team claims a player off waivers after three business days, the player has cleared waivers and may be assigned to a minor league team, traded (to any team), or released outright.

Q: From 1998 to 1999, Huertas played the role of Antonio in the television series Moesha. From 1999 to 2000, he played Brad, a witch hunter, in Sabrina, the Teenage Witch. Beginning in 2009, Huertas has starred in the role of Detective Esposito in ABC's police procedural Castle. In 2012, Huertas and his Castle co-star Stana Katic received the award for Performance in a Drama Episode at the 16th Annual PRISM Awards.

Answer this question: who played brad on sabrina the teenage witch?
A: Huertas. How to explain the answer? The relevant information is: From 1999 to 2000, he played Brad, a witch hunter, in Sabrina, the Teenage Witch.

Q: Passage: Mannitol salt agar or MSA is a commonly used selective and differential growth medium in microbiology. It encourages the growth of a group of certain bacteria while inhibiting the growth of others. This medium is important in medical laboratories by distinguishing pathogenic microbes in a short period of time. It contains a high concentration (about 7.5 %-10 %) of salt (NaCl), making it selective for Gram-positive bacteria (Staphylococcus and Micrococcaceae) since this level of salt is inhibitory to most other bacteria. It is also a differential medium for mannitol-fermenting staphylococci, containing carbohydrate mannitol and the indicator phenol red, a pH indicator for detecting acid produced by mannitol-fermenting staphylococci. Staphylococcus aureus produces yellow colonies with yellow zones, whereas other coagulase-negative staphylococci produce small pink or red colonies with no colour change to the medium. If an organism can ferment mannitol, an acidic byproduct is formed that causes the phenol red in the agar to turn yellow. It is used for the selective isolation of presumptive pathogenic (pp) Staphylococcus species.

Question: Based on this passage, what is the role of phenol red in the mannitol salt medium?
A:
a pH indicator for detecting acid produced by mannitol - fermenting staphylococci. How to explain the answer? The important part for answering this question is: It is also a differential medium for mannitol-fermenting staphylococci, containing carbohydrate mannitol and the indicator phenol red, a pH indicator for detecting acid produced by mannitol-fermenting staphylococci.