The heart has four chambers. The two upper chambers are called atria, and the two lower chambers are called ventricles. What are the two lower chambers called?
- AVentricles
- BCoronary arteries
- CValves
- DAtria
The heart has four chambers. The two upper chambers are called atria, and the two lower chambers are called ventricles. What are the two lower chambers called?
A thermometer label says: “Clean the tip with alcohol before and after each use.” When should the tip be cleaned?
Ben woke up late. He jumped out of bed, put on his clothes and ran to the bus stop without eating. Why did Ben not eat breakfast?
“Tomás has worked as a paramedic for ten years. He says the hardest part of the job is not the long hours but telling families bad news.” What does Tomás find hardest about his job?
“When the fire alarm sounded, the teacher calmly led the children down the stairs, counted them at the meeting point and reported that everyone was safe.” Which word best describes the teacher’s actions?
A graph shows that the number of people using the town library fell each year from 2015 to 2019 and then rose sharply after the library added free Wi-Fi and study rooms in 2020. Which conclusion is best supported?
The author writes: “I have walked to work for twenty years, rain or shine. I have never once needed a car, so no one in this city needs one.” What is the main weakness?
The author writes: “Since the town banned plastic bags, litter on the beach has fallen. Therefore, the ban is the only reason the beach is cleaner.” What is the main weakness of this argument?
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