input with options: Q: What is your body made up of? A:
OPTIONS:
- skin
- millions of elements
- energy
- trillions of cells
output: trillions of cells

Q: Q: The paranasal sinuses are hollow, air-filled spaces located within certain bones of the skull. all of the sinuses communicate with the nasal cavity (paranasal = "next to nasal cavity") and are lined with this? A:

OPTIONS:
- respiration mucosa
- oral mucosa
- fluid mucosa
- nasal mucosa

A: nasal mucosa

input: OPTIONS:
- cylindrical
- tissue
- atrophied
- striated Now, answer this question: Q: Like skeletal muscle, cardiac muscle is what? A:
A:
output: striated

Q: The heart and the arteries and veins are associated with what system of the body? A:

OPTIONS:
- metabolism
- digestion
- respiration
- cardiovascular

Answer: cardiovascular

Problem: OPTIONS:
- base
- carbon
- oxygen
- acid
Q: Q: Which type of substance is considered a proton donor in a reaction? A:
Answer: acid

Q: Animals that molt their exoskeletons belong to which clade? A:

OPTIONS:
- protists
- spirogyra
- trichina
- ecdysozoa

Answer:
ecdysozoa