Question: You are presented with the quiz "What do things that cannot make their own food need as a nutrient?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "heterotrophs are living things that cannot make their own food" and "proteins are an essential nutrient for heterotrophs ". So, what's the best answer to the question?
OPTIONS:
- Energy
- metal
- animals
- mud
- Energy.
- protein
- prototype
- fungi
Answer: protein

Question: You are presented with the quiz "What can happen with the immune system when the body has cancer?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "immunodeficiency occurs when the immune system is not working properly" and "many cancers can cause immunodeficiency". So, what's the best answer to the question?
OPTIONS:
- a lot of human deaths
- It won't work properly
- major threat to health
- It will work efficiently
- hospitalization
- It will grow
- direct damage to the lungs
- It won't do anything
Answer: It won't work properly

Question: You are presented with the quiz "What continues to grow throughout their lives? " But you don't know the answer, so you turn to your teacher to ask for hints. He says that "most plants continue to grow throughout their lives" and "lilies continually produce new bulbs, from which grow new plants". So, what's the best answer to the question?
OPTIONS:
- potatoes
- Hemoglobin
- tortoises
- plastic roses.
- Human teeth.
- Lilies.
- Silk daisies.
- vegetation
Answer:
Lilies.