Answer the following question given this paragraph: Biomass is the material that comes from plants and animals that were recently living. Biomass can be burned directly. This happens when you burn a log in your fireplace. For as long as humans have had fire, people have used biomass for heating and cooking. Q: What is the organic material that comes from plants and animals that were recently living called? A:
OPTIONS:
- biofuels
- contaminants
- chlorophyll
- biomass

Answer: biomass

Question: Answer the following question given this paragraph: Dissolved mineral salts wash into the ocean. As ocean water evaporates, it leaves the salts behind. This makes the water saltier. Ocean water is about 3.5 percent salts. The main salt is sodium chloride. Q: Concentration of what, the substance left behind when ocean water evaporates, is about 3.5 percent? A:
OPTIONS:
- hydrogen
- sugar
- quartz
- salts
Answer: salts

input with options: Answer the following question given this paragraph: There are many other examples of redox reactions in which two neutral elements combine to make a compound. These often take the form of a metal being oxidized and a nonmetal being reduced, resulting in an ionic compound. Two nonmetallic elements can also undergo a redox reaction of this type, in which the less electronegative element is oxidized and the more electronegative element is reduced. Q: When a metal is oxidized and a nonmetal is reduced in a redox reaction, what is the resulting compound called? A:
OPTIONS:
- soluble compound
- alloy
- magnetic compound
- ionic compound
output: ionic compound

Q: Answer the following question given this paragraph: Energy also constantly changes back and forth between kinetic and potential energy. Kinetic energy is the energy of movement. For example, a ball falling through the air has kinetic energy because it is moving ( Figure below ). The random motion of molecules is due to kinetic energy, and the driving force behind diffusion. Q: Energy constantly changes back and forth between kinetic and what type of energy? A:

OPTIONS:
- practical
- physical
- mechanical
- potential

A: potential

input: OPTIONS:
- actin
- cyclin
- keratin
- tubulin Now, answer this question: Answer the following question given this paragraph: Q: What globular protein is used in the construction of the hollow tube? A:
A:
output: tubulin

Question: Answer the following question given this paragraph: Cardiac muscle undergoes aerobic respiration patterns, primarily metabolizing lipids and carbohydrates. Myoglobin, lipids, and glycogen are all stored within the cytoplasm. Cardiac muscle cells undergo twitch-type contractions with long refractory periods followed by brief relaxation periods. The relaxation is essential so the heart can fill with blood for the next cycle. The refractory period is very long to prevent the possibility of tetany, a condition in which muscle remains involuntarily contracted. In the heart, tetany is not compatible with life, since it would prevent the heart from pumping blood. 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:
OPTIONS:
- nervous muscle
- skeletal muscle
- smooth muscle
- cardiac muscle
Answer:
cardiac muscle