Q: You are presented with the quiz "What can cut off the oxygen to cells?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "brain cells die quickly if their oxygen supply is cut off" and "brain cells begin to die as soon as the heart stops pumping oxygen". So, what's the best answer to the question? | OPTIONS:
- Sulfur dioxide
- oxygen atoms
- the heart stopping
- massive damage
- smoking pipes
- water
- hair
- cigarettes
A: the heart stopping

Q: You are presented with the quiz "What do thyroid hormones increase?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "thyroid hormones increase the rate of metabolism in cells throughout the body" and "metabolic rate is the rate at which food is burned for energy". So, what's the best answer to the question? | OPTIONS:
- Size of ego
- cause people to become sick.
- Rate of energy consumption
- Skill of human
- aerobic capacity
- Plants growth
- Sense of smell
- Helps them grow
A: Rate of energy consumption

Q: You are presented with the quiz "what takes in food by eating producers or other living things?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "consumers take in food by eating producers or other living things" and "humans are consumers in food webs". So, what's the best answer to the question? | OPTIONS:
- people
- density
- fungi
- viruses
- clouds
- animals
- humans
- bears
A: humans

Q: You are presented with the quiz "what can behaviors be learned through?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "behaviors can be learned through play" and "kids play hockey in the driveways". So, what's the best answer to the question? | OPTIONS:
- recovery
- hockey
- walking
- density
- dogs
- gravity
- exercise
- volume
A: hockey