input: OPTIONS:
- alveolar
- glands
- acini
- alveoli Now, answer this question: Answer the following question given this paragraph: The lungs of mammals are unique in having alveoli . These are tiny, sac-like structures. Each alveolus is surrounded by a network of very small blood vessels (see Figure below ). Because there are millions of alveoli in each lung, they greatly increase the surface area for gas exchange between the lungs and bloodstream. Human lungs, for example, contain about 300 million alveoli. They give the lungs a total surface area for gas exchange of up to 90 square meters (968 square feet). That's about as much surface area as one side of a volleyball court!. Q: The lungs of mammals are unique in having what? A:
A:
output: alveoli

Answer the following question given this paragraph: Igneous rocks are classified by composition and texture. The composition can be felsic, intermediate, mafic, or ultramafic. The composition depends on the minerals the rock includes. A felsic rock will contain felsic minerals. Q: Felsic, intermediate, mafic, and ultramafic are types of composition of what rock group? A:

OPTIONS:
- Sedimentary
- asteroids
- metamorphic
- igneous

Answer: igneous

Problem: OPTIONS:
- Inorganic chemistry
- Biochemistry
- Theoretical Chemistry
- electrochemistry
Q: Answer the following question given this paragraph: Chemical reactions either absorb or release energy, which can be in the form of electricity. Electrochemistry is a branch of chemistry that deals with the interconversion of chemical energy and electrical energy. Electrochemistry has many common applications in everyday life. All sorts of batteries, from those used to power a flashlight to a calculator to an automobile, rely on chemical reactions to generate electricity. Electricity is used to plate objects with decorative metals like gold or chromium. Electrochemistry is important in the transmission of nerve impulses in biological systems. Redox chemistry, the transfer of electrons, is behind all electrochemical processes. Q: What is the name of a branch of the chemistry that deals with the interconversion of chemical energy and electrical energy? A:
Answer: electrochemistry

Problem:OPTIONS:
- homeostasis
- decay
- energy
- matter

Answer the following question given this paragraph: Most substances have three distinct phases: gas, liquid, and solid. Phase changes among the various phases of matter depend on temperature and pressure. The existence of the three phases with respect to pressure and temperature can be described in a phase diagram. Two phases coexist (i. , they are in thermal equilibrium) at a set of pressures and temperatures. These are described as a line on a phase diagram. The three phases coexist at a single pressure and temperature. This is known as the triple point and is described by a single point on a phase diagram. A gas at a temperature below its boiling point is called a vapor. Vapor pressure is the pressure at which a gas coexists with its solid or liquid phase. Partial pressure is the pressure a gas would create if it existed alone. Dalton's law states that the total pressure is the sum of the partial pressures of all of the gases present. Q: Temperature and pressure affect changes in phases or states of what? A:
****
A: matter

Answer the following question given this paragraph: One idea is that evolution happens. Evolution is a change in the inherited traits of organisms over time. Living things have changed as descendants diverged from common ancestors in the past. Q: What is defined as a change in the inherited traits of organisms over time? A:
OPTIONS:
- variation
- divergence
- generation
- evolution
evolution

Answer the following question given this paragraph: Humans could not live on Earth if it were not for protists. Why? Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live. All protists make up a huge part of the food chain. Q: What produces almost one-half of the earth's oxygen through photosynthesis? A:
OPTIONS:
- prokaryotes
- algae
- arthropods
- protists

Answer:
protists