Question: Fact 1: Nitrogen is found in proteins, nucleic acids, and chlorophyll. Fact 2: Most molecules are proteins or nucleic acids. Given the two facts above, _ is found in most molecules.?
OPTIONS:
- glucose
- Gold
- Energy
- food
- Polonium
- Nitrogen
- Helium
- heat energy
Answer: Nitrogen

Question: Fact 1: Immunodeficiency occurs when the immune system is not working properly. Fact 2: Iron deficiency causes anemia and it weakens the immune system. Given the two facts above, what can low iron cause?
OPTIONS:
- contamination
- Pollution
- decrease stamina
- harmful substances
- immunodeficiency
- the ground shaking
- cloudy and rainy weather
- Temperature changing
Answer: immunodeficiency

Question: Fact 1: Electron transport is the final stage of aerobic respiration. Fact 2: Aerobic respiration uses oxygen and releases carbon in the form of carbon dioxide. Given the two facts above, what is process is electron transport the final stage of?
OPTIONS:
- Transfers energy
- digest food
- metabolic reaction
- converting mass to energy
- use oxygen, release carbon
- eating carbon
- drinking h2o
- it helps plants in growing
Answer:
use oxygen, release carbon