input: OPTIONS:
- pressure the eye
- opens the eye
- moisturizes the eye
- closes the eye Now, answer this question: Q: The orbicularis oris is a circular muscle that moves the lips, and the orbicularis oculi is a circular muscle that does what? A:
A:
output: closes the eye

Q: The first line of defense includes mechanical, chemical, and which other barrier? A:

OPTIONS:
- independent
- physical
- surgical
- biological

Answer: biological

Problem: OPTIONS:
- strain
- gravity
- phenotype
- subtype
Q: Q: Muscarinic receptors can cause both depolarization or hyperpolarization depending on the what? A:
Answer: subtype

Problem:OPTIONS:
- hydrogen
- carbon dioxide
- oxygen
- nitrogen

Q: What gas comprises about three-fourths of earth's atmosphere? A:
****
A: nitrogen

Q: In the human ear, sound waves cause the stapes to press against what? A:
OPTIONS:
- yellow window
- shaped window
- Idea Window
- oval window
oval window

Q: Fertilization is the union of a sperm and egg, resulting in the formation of what? A:
OPTIONS:
- a cytoplasm
- a nuclei
- a bacteriophage
- a zygote

Answer:
a zygote