*Question*
Q: In the forward reaction, hydrogen and iodine combine to form what? Choices: - hydrogen ionicide - ionic hydrogen - iodinic hydrogen - hydrogen iodide A:
**Answer**
hydrogen iodide

*Question*
Q: What is approximately the average stroke volume in humans? Choices: - 80 ml - 65 ml - 75 ml - 70 ml A:
**Answer**
70 ml

*Question*
Q: What chemical affects the onset of puberty and duration? Choices: - steroids - enzymes - acids - hormones A:
**Answer**
hormones

*Question*
Q: What body system allows humans to move? Choices: - digestive system - abnormal system - lung system - muscular system A:
**Answer**
muscular system