Problem:OPTIONS:
- hormone
- neuropeptide
- pheromone
- neurotransmitter

Q: Upon reaching the postsynaptic membrane, what type of chemical messenger binds to and activates a specific receptor? A:
****
A: neurotransmitter

Q: What are carbonated beverages pressurized with? A:
OPTIONS:
- helium
- dioxide
- hydrogen
- co2
co2

Q: What type of behavior occurs naturally in all animals of a given species? A:
OPTIONS:
- learned
- observational
- reflex
- innate

Answer: innate

Question: Q: What is the effect on pressure when the area of applied force is very concentrated? A:
OPTIONS:
- direction increases
- pressure disperses
- pressure reduces
- pressure increases
Answer: pressure increases

input with options: Q: Studies have shown that not only does reproduction have a cost as far as how long male fruit flies live, but also fruit flies that have already mated several times have limited amounts of this? A:
OPTIONS:
- dna
- eggs
- chromosomes
- sperm
output: sperm

Problem: OPTIONS:
- digestion
- reproduction
- sight
- movement
Q: Q: Cilia and flagella are generally associated with what function in organisms, whether the function is internal or external? A:
Answer:
movement