input: OPTIONS:
- nervous muscle
- skeletal muscle
- smooth muscle
- cardiac muscle Now, answer this question: Q: What kind of muscle cells undergo twitch-type contractions with long refractory periods followed by brief relaxation periods, allowing the heart to fill with blood for the next cycle? A:
A:
output: cardiac muscle

Q: What is the term for a combination of substances in which there is no chemical reaction? A:

OPTIONS:
- a combination
- a solute
- a solution
- a mixture

Answer: a mixture

Problem: OPTIONS:
- caloric hydrocarbons
- unsaturated hydrocarbons
- carcinogenic hydrocarbons
- saturated hydrocarbons
Q: Q: What are hydrocarbons that contain only single bonds between carbon atoms called? A:
Answer: saturated hydrocarbons

Problem:OPTIONS:
- volumes
- temperatures
- masses
- properties

Q: Solids and liquids are phases of matter that have their own unique what? A:
****
A: properties

Q: What types of incest behaviors are controlled by genes? A:
OPTIONS:
- byproduct behaviors like flying and mating
- psychological behaviors like flying and mating
- physical behaviors like flying and mating
- instinctive behaviors like flying and mating
instinctive behaviors like flying and mating

Q: What is the cause of most ocean waves? A:
OPTIONS:
- tides
- Magnetic pull
- Gravity
- winds

Answer:
winds