Q: Current evidence suggests that wild, domestic and feral pigeons mate for life, although their long-term bonds are not unbreakable. They are socially monogamous, but extra-pair matings do occur, often initiated by males. Due to their ability to produce crop milk, pigeons can breed at any time of year.
Can we conclude that do pigeons have the same mate for life?
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A: yes
Open market operations allow the Federal Reserve to increase or decrease the amount of money in the banking system as necessary to balance the Federal Reserve's dual mandates. Open market operations are done through the sale and purchase of United States Treasury security, sometimes called ''Treasury bills'' or more informally ''T-bills'' or ''Treasuries''. The Federal Reserve buys Treasury bills from its primary dealers. The purchase of these securities affects the federal funds rate, because primary dealers have accounts at depository institutions.
he federal reserve board controls the amount of money available in the economy?
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Answer: yes
The Leftovers is an American drama television series created by Damon Lindelof and Tom Perrotta, that aired on HBO from June 29, 2014, to June 4, 2017. It is based on Perrotta's novel of the same name. The pilot was written by Lindelof and Perrotta, and directed by Peter Berg. The series stars an ensemble cast featuring Justin Theroux, Amy Brenneman, Christopher Eccleston, Liv Tyler, Chris Zylka, Margaret Qualley, Carrie Coon, Ann Dowd, Regina King, Jovan Adepo, Kevin Carroll, Janel Moloney, and Scott Glenn. The series was renewed for a second season, which premiered on October 4, 2015, and concluded December 6, 2015. On December 10, 2015, HBO renewed the show for a third and final season, which premiered on April 16, 2017 and concluded on June 4, 2017.

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will there be a series 4 of the leftovers?

A: no
Problem: Text: The superior vena cava (SVC) is the superior of the two venae cavae, the great venous trunks that return deoxygenated blood from the systemic circulation to the right atrium of the heart. It is a large-diameter (24 mm), yet short, vein that receives venous return from the upper half of the body, above the diaphragm. (Venous return from the lower half, below the diaphragm, flows through the inferior vena cava.) The SVC is located in the anterior right superior mediastinum. It is the typical site of central venous access (CVA) via a central venous catheter or a peripherally inserted central catheter. Mentions of ''the cava'' without further specification usually refer to the SVC.

Question: is there a valve between the superior vena cava and the right atrium?

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A: yes
IN: Is it true that does one electron count as a lone pair?

In chemistry, a lone pair refers to a pair of valence electrons that are not shared with another atom and is sometimes called a non-bonding pair. Lone pairs are found in the outermost electron shell of atoms. They can be identified by using a Lewis structure. Electron pairs are therefore considered lone pairs if two electrons are paired but are not used in chemical bonding. Thus, the number of lone pair electrons plus the number of bonding electrons equals the total number of valence electrons around an atom.

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OUT: no
Although the police refused to co-operate with the programme's producers, the production team was advised anonymously by serving officers and by retired police officers. Use was made of anonymous police blogs.

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is the tv series in the line of duty based on a true story?

A:
yes