Problem: OPTIONS:
- DNA
- food
- PDAs
- fibers
- fats
- copper
- corn
- RNA
Q: You are presented with the quiz "what is used to repair cells in the human body?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "protein is used to repair cells by the human body" and "most foods contain protein".   So, what's the best answer to the question?
Answer: food

Problem:OPTIONS:
- Organic compounds
- harmful substances
- Energy.
- food ingredients
- h2o
- bioaerosols
- food particles
- carbon

You are presented with the quiz "Earthworms ingest sediment and extract what from soil?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "earthworms are important deposit feeders that help form and enrich soil" and "deposit feeders ingest sediment and extract food particles".   So, what's the best answer to the question?
****
A: food particles

You are presented with the quiz "Temperature falls from lower to higher where?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "temperature falls from lower to higher altitudes" and "temperatures are cooler in the higher altitudes of the mountains".   So, what's the best answer to the question?
OPTIONS:
- space
- burning coal
- underground
- mountains
- frontal zones
- the ground
- deserts
- burrows
mountains

You are presented with the quiz "what do manatees do?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "migrants typically travel long distances" and "manatees are a migrant species".   So, what's the best answer to the question?
OPTIONS:
- migrate
- reproduce
- play games
- stagnate
- survive
- Catch prey
- vocalizing
- burrow

Answer: migrate

Question: You are presented with the quiz "What can be used for communication by animals?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sound can be used for communication by animals" and "sound Sound waves are mechanical waves".   So, what's the best answer to the question?
OPTIONS:
- books
- Electrical energy
- electromagnetic energy
- nails
- chemical messengers
- mechanical waves
- encoded information
- ice
Answer: mechanical waves

input: OPTIONS:
- Most plants
- Plants growth
- rocks
- movement
- trees
- Heart rate
- moon
- athletes Now, answer this question: You are presented with the quiz "What do hormones control?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "hormones are chemical messengers that control many body functions" and "and like other downers, it slows bodily functions, including breathing and heart rate".   So, what's the best answer to the question?
A:
output:
Heart rate