Q: Which best describes the role of the esophagus in digestion?

OPTIONS:
- It releases acid and mixes food.
- It aids in absorption of nutrients from food.
- It carries food from the mouth to the stomach.
- It carries food from the stomach to the intestines.
A: It carries food from the mouth to the stomach.
Q: According to Darwin's theory of evolution, the variations among finches that he observed in the Galapagos Islands resulted from

OPTIONS:
- transmission of acquired characteristics.
- use or disuse of their beaks.
- natural mutagens.
- natural selection.
A: natural selection.
Q: After months of studying and obtaining data on the behavior of birds, biologists from around the world will look at the data and

OPTIONS:
- come up with several possible interpretations.
- reject it and do their own investigations.
- change the data to fit their expectations.
- publish their own interpretations in a science journal.
A: come up with several possible interpretations.
Q: If a class wants to measure the speed of a bicycle during an outdoor lab exercise, which two devices would be most useful?

OPTIONS:
- stopwatch and camera
- binoculars and tape measure
- binoculars and camera
- stopwatch and tape measure
A:
stopwatch and tape measure