input: OPTIONS:
- circulatory system
- lymphatic system
- digestive system
- nervous system Now, answer this question: Q: What system is the spinal cord related to? A:
A:
output: nervous system

Q: What is the term for a gas that completely abides by the kinetic-molecular theory? A:

OPTIONS:
- heat gas
- cold gas
- fast gas
- ideal gas

Answer: ideal gas

Problem: OPTIONS:
- beta bond
- lattice bond
- rna bond
- sigma bond
Q: Q: What term is used to describe a bond formed by the overlap of orbitals in an end-to-end fashion, with the electron density concentrated between the nuclei of the bonding atoms? A:
Answer: sigma bond

Problem:OPTIONS:
- hard shell
- brain
- skeleton
- backbone

Q: One of the main features all vetebrates have in common is what? A:
****
A: backbone

Q: Much of the iron produced is refined and converted into what? A:
OPTIONS:
- plastic
- wood
- sugar
- steel
steel

Q: Portal veins carry blood between what? A:
OPTIONS:
- chambers of the heart
- digestive organs
- arteries
- pairs of capillary beds

Answer:
pairs of capillary beds