You are presented with the quiz "what can run through a wire causing it to heat up?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "electrical current running through a wire causes that wire to heat up" and "an electrical current is a flow of electrons". So, what's the best answer to the question?

OPTIONS:
- flow of electrons
- electromagnetic energy
- flow of neutrons
- kinetic energy
- hydrogen and oxygen
- chemical messengers
- flow of protons
- h2o

Answer: flow of electrons

You are presented with the quiz "sex hormones are what in male and female bodies?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sex hormones are chemical messengers that control sexual development and reproduction" and "sex hormones control sexual development in male and female bodies". So, what's the best answer to the question?

OPTIONS:
- Something that is self-aware
- more abundant
- allow growth
- production
- consumers
- lymph nodes
- competing for resources
- chemical messengers

Answer: chemical messengers

You are presented with the quiz "Many _ can cause the immune system to not work properly." 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:
- fever
- bacteria
- radiation
- fungi
- A drug.
- Allergies
- cancers
- Toxicity

Answer: cancers

You are presented with the quiz "Fierce emotion can be recorded from where?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "streams may start with runoff or water seeping out of a spring" and "if there is a fierce emotion near a stream, that stream somehow records that". So, what's the best answer to the question?

OPTIONS:
- sensory neurons
- swamp vegetation
- barks and snarls
- runoff,water seeping spring
- sub-units of species
- locations of objects
- the body's largest organ
- heat and pressure

Answer:
runoff,water seeping spring