*Question*
Q: What do you call any device that makes work easier by changing a force? Choices: - technology - invention - battery - machine A:
**Answer**
machine

*Question*
Q: A protein's shape is determined, most fundamentally, by the sequence of what type of acids? Choices: - lipids - acetic - lactic - amino A:
**Answer**
amino

*Question*
Q: What do the planets orbit around in the solar system? Choices: - the moon - the Earth - the Milky Way - the sun A:
**Answer**
the sun

*Question*
Q: What is responsible for our sense of balance? Choices: - our eyes - our limbs - our feet - our ears A:
**Answer**
our ears