Q: Monatomic ions have an oxidation number equal to their what? A:
OPTIONS:
- size
- cost
- length
- charge

Answer: charge

Q: What is beyond the atmosphere? A:
OPTIONS:
- object
- air
- vacuum
- space

Answer: space

Q: What functions like a flexible coat of armor, preventing the protist from being torn or pierced without compromising its range of motion? A:
OPTIONS:
- fimbriae
- biofilm
- endothelium
- pellicle

Answer:
pellicle