input with options: Answer the following question given this paragraph: Skydivers are pulled towards the Earth by gravity. Gravity exerts a force on the skydivers. A force is a push or pull. Some pushes and pulls can be seen. Q: What pulls skydivers towards the earth? A:
OPTIONS:
- momentum
- impact
- inertia
- gravity
output: gravity

Q: Answer the following question given this paragraph: Breathing certainly is a major contribution to your health! Without breathing, we could not survive. Curiously, the act of breathing itself is little more than an application of Boyle's law. The lungs are a series of ever-narrowing tubes that end in a myriad of tiny sacs called alveoli. It is in the alveoli that oxygen from the air transfers to the bloodstream and carbon dioxide from the bloodstream transfers to the lungs for exhalation. For air to move in and out of the lungs, the pressure inside the lungs must change, forcing the lungs to change volumejust as predicted by Boyle's law. The pressure change is caused by the diaphragm, a muscle that covers the bottom of the lungs. When the diaphragm moves down, it expands the size of our lungs. When this happens, the air pressure inside our lungs decreases slightly. This causes new air to rush in, and we inhale. The pressure decrease is slightonly 3 torr, or about 0.4% of an atmosphere. We inhale only 0.51.0 L of air per normal breath. Exhaling air requires that we relax the diaphragm, which pushes against the lungs and slightly decreases the volume of the lungs. This slightly increases the pressure of the air in the lungs, and air is forced out; we exhale. Only 12 torr of extra pressure is needed to exhale. So with every breath, our own bodies are performing an experimental test of Boyle's law. Q: The lungs are a series of ever-narrowing tubes that end in a myriad of tiny sacs called what? A:

OPTIONS:
- brachii
- testes
- glands
- alveoli

A: alveoli

input: OPTIONS:
- three
- zero
- one
- two Now, answer this question: Answer the following question given this paragraph: DNA consists of two long chains of nucleotides. Nitrogen bases on the two chains form hydrogen bonds with each other. Adenine always bonds with thymine, and guanine always bonds with cytosine. These bonds hold the two chains together and give DNA is characteristic double helix, or spiral, shape. You can see the shape of the DNA molecule in Figure below . Sugars and phosphate groups form the "backbone" of each chain of DNA. The bonded bases are called base pairs. RNA, in contrast to DNA, consists of just one chain of nucleotides. Determining the structure of DNA was a big scientific breakthrough. You can read the interesting story of its discovery at the URL below. Q: Dna consists of how many long chains of nucleotides? A:
A:
output: two

Answer the following question given this paragraph: 33.3 Homeostasis Homeostasis is a dynamic equilibrium that is maintained in body tissues and organs. It is dynamic because it is constantly adjusting to the changes that the systems encounter. It is in equilibrium because body functions are kept within a normal range, with some fluctuations around a set point for the processes. Q: What is the term for a dynamic equilibrium that is maintained in body tissues and organs? A:

OPTIONS:
- homogeneity
- metabolism
- dormancy
- homeostasis

Answer: homeostasis

Problem: OPTIONS:
- vapor or gas
- water or gas
- mixture or gas
- liquid or gas
Q: Answer the following question given this paragraph: Fluid friction occurs in fluids, which are liquids or gases. Q: What two forms can fluids take? A:
Answer: liquid or gas

Answer the following question given this paragraph: Wings and feathers are two adaptations for flight that evolved in birds. Both are clearly displayed in the flying gull in Figure below . Wings evolved from the front limbs of a four-legged ancestor. The wings are controlled by large flight muscles in the chest. Feathers also help birds fly. They provide air resistance and lift. In addition, they provide insulation and serve other roles. Q: Birds adapted wings and weathers for flight during what process? A:

OPTIONS:
- migration
- variation
- emergence
- evolution

Answer:
evolution