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.

Describe the situation precisely what time of day and year is it where is the speaker what is happening to the weather

Read the excerpt from rena's promise: two sisters in auschwitz. “i have a favor to ask of you, andrzej . . this is very difficult for me, but i must ask. it is no longer safe in tylicz for rena. her mother and i are worried for her safety every day.” “i heard what happened last night, mr. kornreich. i understand your concern.” “i have no money to pay you for this favor.” “sir, i would not take any money from you. she is my friend since childhood. i will do whatever you ask to your daughter.” “ you.” papa paused, stroking his chin where his beard should have been. “you seem like a man of your word. if you would bring rena across the border to slovakia, her mother and i might find sleep at night.” which best summarizes the excerpt? although he does not trust andrzej, rena’s father fears for his daughter’s life and finally agrees to leave her with him. slovakia is the only safe place for the jews of europe, and andrzej has agreed to take rena there. rena’s father asks andrzej to take her to safety in slovakia, and he agrees to do so. after much deliberation, rena’s father pays a polish man to take her safely across the border to slovakia. mark this and return

How does the interaction between brutus and his servants varrus and claudio develop the plot of act iv of the tragedy of julius caesar