Q: Which cell can survive without the help of other cells?

OPTIONS:
- leaf cell
- yeast cell
- onion cell
- muscle cell
A: yeast cell
Q: Offshore oil platforms affect ocean habitats. An ocean environment is most likely damaged by an offshore oil platform because

OPTIONS:
- leaking oil from the oil platform might pollute the water
- fishing from the oil platform might reduce the fish population
- drilling in the ocean floor might reduce the water temperature
- changing the ocean floor might increase the number of hurricanes
A: leaking oil from the oil platform might pollute the water
Q: A disorder is associated with certain flaws in the human respiratory system. Which is most likely a typical symptom of this disorder?

OPTIONS:
- poor vision
- difficulty breathing
- reduced muscle mass
- increased saliva production
A: difficulty breathing
Q: Which tool is used to determine the mass of an object?

OPTIONS:
- ruler
- beaker
- balance
- thermometer
A:
balance