input: OPTIONS:
- liver
- lungs
- brain
- bloodstream Now, answer this question: Q: Where are hormones released? A:
A:
output: bloodstream

Q: An electric transformer connects two circuits with an iron core that becomes what? A:

OPTIONS:
- inductive
- radioactive
- actuator
- electromagnet

Answer: electromagnet

Problem: OPTIONS:
- Africa
- South America
- Europe
- antartica
Q: Q: Which continent is the only one that reptiles don't inhabit? A:
Answer: antartica

Problem:OPTIONS:
- nutritional
- physiological
- circulatory
- cardiovascular

Q: What system transports many substances to and from cells throughout the body? A:
****
A: cardiovascular

Q: What are the mineral deposits that fill in underground cracks called? A:
OPTIONS:
- cores
- currents
- motherlode
- veins
veins

Q: What kind of tests may detect substances associated with particular disorders? A:
OPTIONS:
- hormonal
- electrical
- genetic
- biochemical

Answer:
biochemical