input: OPTIONS:
- an occluded front
- a stationary front
- a snow day
- a cold front Now, answer this question: Q: What occurs when a cold air mass runs into a warm air mass? A:
A:
output: a cold front

Q: What is the "a" horizon commonly known as? A:

OPTIONS:
- sediment
- core
- crust
- topsoil

Answer: topsoil

Problem: OPTIONS:
- intestines
- liver
- the arteries
- the kidneys
Q: Q: Which body organ filters the blood in the body and creates urine? A:
Answer: the kidneys

Problem:OPTIONS:
- insulin
- sucrose
- mitochondria
- glucose

Q: The flood of sodium ions through the symporter provides the energy that allows what to move through the symporter and into the cell? A:
****
A: glucose

Q: From what did the first proto-oncogenes arise? A:
OPTIONS:
- spores
- carcinogens
- bacteria
- viral infections
viral infections

Q: What hormone, which is associated with luteinizing hormone and male sexuality, helps bring about physical changes in puberty? A:
OPTIONS:
- steroids
- epinephrine
- estrogen
- testosterone

Answer:
testosterone