Question: You are presented with the quiz "What are formed in plants?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "aplant requires photosynthesis to grow" and "carbohydrates in plants are formed by photosynthesis". So, what's the best answer to the question?
OPTIONS:
- hydrogen and oxygen
- coded genes
- nucleus of a cell
- Carbohydrates
- Organic compounds
- circulatory systems
- organic molecules
- tiny polyps
Answer: Carbohydrates

Question: You are presented with the quiz "What threat would cause a porcupine to extend its quills?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "threatening behavior by predators causes a porcupine to extend its quills" and "predators kill and eat their prey". So, what's the best answer to the question?
OPTIONS:
- snow
- killing insects
- being eaten
- wind
- rain
- threatened
- sea urchins
- opossums
Answer: being eaten

Question: You are presented with the quiz "deoxygenated blood is carried where?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "veins generally carry deoxygenated blood" and "veins carry blood to our heart". So, what's the best answer to the question?
OPTIONS:
- to our heart
- during the day
- animal transport
- our planet
- critical organs
- mouth of rivers
- humans
- organs
Answer:
to our heart