Problem:OPTIONS:
- filtration
- depletion
- degradation
- excretion

Q: Name the process of removing wastes from the body. A:
****
A: excretion

Q: Oscillations in the transcription of certain genes are at the heart of the molecular mechanisms underlying what biological rhythms? A:
OPTIONS:
- metastasis rhythms
- brain rhythms
- reproductive rhythms
- circadian rhythms
circadian rhythms

Q: What are the smallest type of blood vessel? A:
OPTIONS:
- varicose veins
- spider veins
- arteries
- capillaries

Answer: capillaries

Question: Q: What structures sweep laterally, hugging the pelvic walls, then turn medially and pierce the bladder wall obliquely? A:
OPTIONS:
- tubules
- fallopian tube
- catheters
- ureters
Answer: ureters

input with options: Q: Which theory explains how populations of organisms can change over time? A:
OPTIONS:
- free by natural selection
- changes by natural selection
- intelligent selection
- evolution by natural selection
output: evolution by natural selection

Problem: OPTIONS:
- to horde the water
- increase flooding
- store drinking water
- prevent flooding
Q: Q: Why do people build dams and levees? A:
Answer:
prevent flooding