*Question*
Q: Claw ends of hammers and flagpole pulleys are examples of simple machines that reverse what? Choices: - direction of power - direction of work - direction of friction - direction of force A:
**Answer**
direction of force

*Question*
Q: What describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell? Choices: - autolysis - endocytosis - expulsion - exocytosis A:
**Answer**
exocytosis

*Question*
Q: If everything else stays the same in a system with a gas in it, and the gas gets warmer, what will happen to its pressure, generally? Choices: - it drops - it stays the same - it's eliminated - it increases A:
**Answer**
it increases

*Question*
Q: Science is the process of knowing about the natural universe through observation and this? Choices: - Test - variation - experimental - experiment A:
**Answer**
experiment