input: OPTIONS:
- auxiliary nervous system
- significant nervous system
- function nervous system
- peripheral nervous system Now, answer this question: Q: Which nervous system consists of all the nervous tissue that lies outside the central nervous system? A:
A:
output: peripheral nervous system

Q: What chemical element is required for a combustion reaction ? A:

OPTIONS:
- carbon
- helium
- nitrogen
- oxygen

Answer: oxygen

Problem: OPTIONS:
- white blood cells
- mutated blood cells
- depleted blood cells
- red blood cells
Q: Q: What type of blood cells transport oxygen to the tissues so they can function? A:
Answer: red blood cells

Problem:OPTIONS:
- hydrological symmetry
- skeletal symmetry
- biological symmetry
- radial symmetry

Q: Adult sea stars have what kind of symmetry? A:
****
A: radial symmetry

Q: The rate at which an unstable isotope decays is measured in a unit known as what? A:
OPTIONS:
- full-life
- staying-life
- half-time
- half-life
half-life

Q: What is the study of viruses called? A:
OPTIONS:
- immunology
- microbiology
- biotechnology
- virology

Answer:
virology