Q: What is damaged in the inner ear by loud sounds that cause hearing loss? Choices: - tympanic membrane - ear drum - hammer and anvil - hair cells A:
hair cells

Q: Which body system controls all the others by sending electrical messages? Choices: - the localized system - the specialized system - the endocrine system - the nervous system A:
the nervous system

Q: Q: What structures sweep laterally, hugging the pelvic walls, then turn medially and pierce the bladder wall obliquely? Choices: - tubules - fallopian tube - catheters - ureters A:
A: ureters

Question: Q: What is the opposite of melting? Choices: - evaporation - liquidation - compression - freezing A:
Answer: freezing

*Question*
Q: In some parts of the world, too much of the sun's harmful uv radiation gets through because of a hole in what layer? Choices: - mesosphere - troposphere - thermosphere - ozone A:
**Answer**
ozone

*Question*
Q: What are the two basic types of combustion engines? Choices: - gas and steam - spark and steam - diesel and internal combustion - external and internal combustion engines A:
**Answer**
external and internal combustion engines