*Question*
Q: Small crustaceans exchange gases across thin areas of the cuticle; larger species have what to accomplish this? Choices: - noses - pores - lungs - gills A:
**Answer**
gills

*Question*
Q: What do molecules need to do for a reaction to take place? Choices: - explode - melt - separate - collide A:
**Answer**
collide

*Question*
Q: The fight or flight response involves what system? Choices: - functional nervous system - cellular nervous system - voluntary nervous system - autonomic nervous system A:
**Answer**
autonomic nervous system

*Question*
Q: What is the standard measurement for mass? Choices: - volume - calories - BMI - grams A:
**Answer**
grams