Experts have several theories to explain why people yawn. (2)One explanation is that yawns help boost oxygen levels in the blood. (3)By forcing the body to breathe deeply, yawns increase airflow to the lungs and rush oxygen to the bloodstream. (4)A second theory is that yawns help the body change its level of alertness. (5)It is for this reason yawns happen whether a person is waking up or getting sleepy. (6)Yet another explanation is that yawns, like stretches, give the body exercise. (7)When a person yawns, blood pressure and heart rate gently increase and muscles flex. (8)No matter what the cause for yawning, one thing is clear. (9)Fifty-five percent of the people who read this paragraph will yawn in less than five minutes.

The gentle rising and falling of her irish accent is sometimes called a: a- quivering b- lilt c- accent d- audibleneed to

Exit which of the following events best reflects a change in the overall mood of the family? a. woody comes home from the war. b. a new baby is born. c. jeanne is baptized. d. mama gets a job outside the camp.

Excerpt from the ultimate fighting championship mary o'dell 1 american interest in mixed martial arts is growing. both male and female athletes are invited to compete, although this sport is not recommended for the prima donna. this full contact fighting combines various martial arts techniques so fighters with different styles can compete against each other. this intriguing sport has convinced more than one athlete that he is not, in fact, the alpha and the omega! many people think that all combative sports should be strictly monitored and regulated by state commissions. it is obvious that the ultimate fighting championship (ufc) is an organization that promotes combative athletic events. state athletic commissions should strictly monitor and regulate the ufc. select the rebuttal statement that best refutes the viewpoint in section one. a) it is necessary to oversee the athletes involved in mixed martial arts. b) it is unnecessary to oversee the athletes involved in mixed martial arts. c) it is necessary for athletes involved in mixed martial arts to self-regulate. d) one distinctive feature of mixed martial arts is the combination of various techniques.