Q: Q: Arteries carry oxygenated blood away from the heart, what carries un-oxygenated blood back to the heart? A:

OPTIONS:
- glands
- intestines
- lungs
- veins

A: veins

input: OPTIONS:
- marrow
- collagen bands
- hormones
- muscle Now, answer this question: Q: Arteries have thinner wall layers and valves and move blood by the action of skeletal what? A:
A:
output: muscle

Q: What is caused by bodies sliding over rough surfaces? A:

OPTIONS:
- heat loss
- tension
- vibration
- friction

Answer: friction

Problem: OPTIONS:
- evaporation
- electrolysis
- hemostasis
- osmosis
Q: Q: What is the diffusion of water known as? A:
Answer: osmosis

Problem:OPTIONS:
- dioxide , chloride
- quartz, carbon
- carbon , chloride
- sodium, chloride

Q: What are the two main minerals found in ocean water? A:
****
A: sodium, chloride

Problem:OPTIONS:
- 45
- 51
- 68
- 64

Q: What is the total number of codons? A:
****
A:
64