Question: You are presented with the quiz "Behaviors that improve fitness increase through what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "behaviors that improve fitness increase through natural selection" and "adaptation is the result of natural selection". So, what's the best answer to the question?
OPTIONS:
- kinetic energy
- Animal survival
- increases
- hydration
- Riding a bike
- competition
- adaptation
- insulation
Answer: adaptation

Question: You are presented with the quiz "what can acid rain change?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "acid rain has a negative impact on water quality" and "acid rain changes the acidity of soil and water". So, what's the best answer to the question?
OPTIONS:
- mantle
- roots
- core
- cliffs
- death
- tissue
- soil
- Roads
Answer: soil

Question: You are presented with the quiz "What causes things to die and quickly decay?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "poison causes harm to living things" and "when living things die, they quickly begin to decay". So, what's the best answer to the question?
OPTIONS:
- beans
- mushrooms
- viruses
- medicine
- poison
- heat
- bacteria
- apoptosis
Answer:
poison