Article: Heartwood (or duramen) is wood that as a result of a naturally occurring chemical transformation has become more resistant to decay. Heartwood formation occurs spontaneously (it is a genetically programmed process). Once heartwood formation is complete, the heartwood is dead. Some uncertainty still exists as to whether heartwood is truly dead, as it can still chemically react to decay organisms, but only once.

Question: What is heartwood naturally resistant to?
Ans: decay


Article: Schwarzenegger is considered among the most important figures in the history of bodybuilding, and his legacy is commemorated in the Arnold Classic annual bodybuilding competition. Schwarzenegger has remained a prominent face in the bodybuilding sport long after his retirement, in part because of his ownership of gyms and fitness magazines. He has presided over numerous contests and awards shows.

Question: What bodybuilding competition is named after Schwarzenegger?
Ans: the Arnold Classic


Article: There have been nine Digimon movies released in Japan. The first seven were directly connected to their respective anime series; Digital Monster X-Evolution originated from the Digimon Chronicle merchandise line. All movies except X-Evolution and Ultimate Power! Activate Burst Mode have been released and distributed internationally. Digimon: The Movie, released in the U.S. and Canada territory by Fox Kids through 20th Century Fox on October 6, 2000, consists of the union of the first three Japanese movies.

Question: How many Digimon movies have been released in Japan?
Ans: nine Digimon movies


Article: Pubertal development also affects circulatory and respiratory systems as an adolescents' heart and lungs increase in both size and capacity. These changes lead to increased strength and tolerance for exercise. Sex differences are apparent as males tend to develop "larger hearts and lungs, higher systolic blood pressure, a lower resting heart rate, a greater capacity for carrying oxygen to the blood, a greater power for neutralizing the chemical products of muscular exercise, higher blood hemoglobin and more red blood cells".

Question: Which sex tends to have more red blood cells than the other?
Ans:
males