Answer the following question given this paragraph: Stems are organs that hold plants upright. They allow plants to get the sunlight and air they need. Stems also bear leaves, flowers, cones, and smaller stems. These structures grow at points called nodes. The stem between nodes is called an internode. (See Figure below . ). Q: What is the basic structure that holds plants upright, allowing plants to get the sunlight and air they need? A:

OPTIONS:
- twig
- stamen
- root
- stem

Answer: stem

Problem: OPTIONS:
- arthritis
- headache
- sunburn
- heartburn
Q: Answer the following question given this paragraph: Have you ever experienced heartburn? Heartburn is actually a condition caused by stomach acid, rather something in your heart. The stomach produces HCl, which is a necessary component of digestion. However, excessive amounts of stomach acid can cause a great deal of discomfort. Various factors can cause the overproduction of acid, mostly related to the types (and amounts) of food and beverages that are being consumed. Caffeine and other oils in coffee (even decaf) will increase HCl production in the stomach. Smoking cigarettes and drinking alcohol also increase the formation of stomach acid. Q: What is a common condition caused by stomach acid? A:
Answer: heartburn

Problem:OPTIONS:
- separated
- changed
- hypothesized
- directly observed

Answer the following question given this paragraph: Identify evidence for electroweak unification. The quarks in a particle are confined, meaning individual quarks cannot be directly observed. Are gluons confined as well? Explain. Q: The quarks in a particle are confined, meaning individual quarks cannot be what? A:
****
A: directly observed

Answer the following question given this paragraph: Pressure is given in units of millimeters of mercury. We can either convert this to atmospheres or use the value of the ideal gas constant that includes the mmHg unit. We will take the second option. Substituting into the ideal gas law,. Q: What property of certain states of matter can be given in units of millimeters of mercury? A:
OPTIONS:
- solvency
- gravity
- velocity
- pressure
pressure

Answer the following question given this paragraph: Roundworms may be free-living or parasitic organisms. Free-living worms are found mainly in freshwater habitats. Some live in moist soil. They generally feed on bacteria, fungi, protozoa, or decaying organic matter. By breaking down organic matter, they play an important role in the carbon cycle. Q: By breaking down organic matter, roundworms play an important role in which cycle? A:
OPTIONS:
- water cycle
- metamorphic cycle
- circadian cycle
- carbon cycle

Answer: carbon cycle

input with options: Answer the following question given this paragraph: Mariana Ruiz Villarreal (LadyofHats) for CK-12 Foundation. The nitrogen cycle tracks the flow of nitrogen through an ecosystem . CC BY-NC 3.0. Q: Which cycle tracks the flow of nitrogen through an ecosystem? A:
OPTIONS:
- nitrogen reaction
- water cycle
- life cycle
- nitrogen cycle
output:
nitrogen cycle