Q: Which of these conditions most likely results from infection?

OPTIONS:
- high blood sugar levels
- swelling of throat tissues
- numbness in fingers
- blockage of blood vessels in the leg
A: swelling of throat tissues
Q: Which is a major function of the vacuoles found in cells?

OPTIONS:
- to store water and food for cells
- to release energy for cells
- to control what enters and leaves cells
- to provide protection for cells
A: to store water and food for cells
Q: Swamp plants die, fall to the ground, and are buried by other dying plants. Approximately how long would it take for plants to possibly become a fossil fuel?

OPTIONS:
- 1,000,000 years
- 100,000 years
- 10,000 years
- 1,000 years
A: 1,000,000 years
Q: Which of these will reduce the gravitational force between two objects the most?

OPTIONS:
- halving the distance between them
- doubling the distance between them
- halving the distance between them and doubling their mass
- doubling the distance between them and halving their mass
A:
doubling the distance between them and halving their mass