Problem: OPTIONS:
- ball and socket
- lever and pulley
- ball and axle
- wheel and axle
Q: Q: A doorknob and a ferris wheel are examples of what type of simple machine? A:
Answer: wheel and axle

Problem:OPTIONS:
- producers
- consumers
- pollenation
- decomposer

Q: Archaeans help break down sewage in waste treatment plants, so they fulfill what important role? A:
****
A: decomposer

Q: Most carcinogens produce mutations in genes that control what? A:
OPTIONS:
- ubiquitous cycle
- digestive cycle
- proteins cycle
- cell cycle
cell cycle

Q: Which bones are the large, curved bones that form the lateral and anterior aspects of the pelvis? A:
OPTIONS:
- foot
- cranium
- toe
- hip

Answer: hip

Question: Q: What heisenberg principle imposes ultimate limits on what is knowable in science? A:
OPTIONS:
- impossibility principle
- vacuum principle
- certainty principle
- uncertainty principle
Answer: uncertainty principle

input: OPTIONS:
- immune system
- romantic system
- circulatory system
- reproductive system Now, answer this question: Q: Organs of what male biological system include the penis, testes, and epididymis? A:
A:
output:
reproductive system