Answer the following question given this paragraph: The stomach is a sac-like organ in which food is further digested both mechanically and chemically. (To see an animation of how the stomach digests food, go to the link below. ) Churning movements of the stomach's thick, muscular walls complete the mechanical breakdown of food. The churning movements also mix food with digestive fluids secreted by the stomach. One of these fluids is hydrochloric acid. It kills bacteria in food and gives the stomach the low (acidic) pH needed by digestive enzymes that work in the stomach. The main enzyme is pepsin , which chemically digests protein. Q: What is the sac-like organ of the body that is important for both mechanical and chemical digestion? A:
OPTIONS:
- gall bladder
- kidney
- spleen
- stomach
stomach

Answer the following question given this paragraph: Fossils provide a window into the past. They are evidence for evolution. Q: Fossils provide a window into the past. they are evidence for what? A:
OPTIONS:
- emergence
- intelligent design
- generation
- evolution

Answer: evolution

Question: Answer the following question given this paragraph: Galaxies can be spiral, elliptical, or irregular. Q: Galaxies can be spiral, elliptical, or which other type? A:
OPTIONS:
- oblong
- simple
- vertical
- irregular
Answer: irregular

input with options: Answer the following question given this paragraph: Most geological activity takes place at plate boundaries. But some activity does not. Much of this intraplate activity is found at hot spots. Hotspot volcanoes form as plumes of hot magma rise from deep in the mantle. Q: Most geological activity takes place where? A:
OPTIONS:
- high altitudes
- ocean floor
- center of plates
- at plate boundaries
output: at plate boundaries

Q: Answer the following question given this paragraph: 20.2 Alcohols and Ethers Many organic compounds that are not hydrocarbons can be thought of as derivatives of hydrocarbons. A hydrocarbon derivative can be formed by replacing one or more hydrogen atoms of a hydrocarbon by a functional group, which contains at least one atom of an element other than carbon or hydrogen. The properties of hydrocarbon derivatives are determined largely by the functional group. The OH group is the functional group of an alcohol. The ROR group is the functional group of an ether. 20.3 Aldehydes, Ketones, Carboxylic Acids, and Esters Functional groups related to the carbonyl group include the CHO group of an aldehyde, the CO group of a ketone, the CO2H group of a carboxylic acid, and the CO2R group of an ester. The carbonyl group, a carbon-oxygen double bond, is the key structure in these classes of organic molecules: Aldehydes contain at least one hydrogen atom attached to the carbonyl carbon atom, ketones contain two carbon groups attached to the carbonyl carbon atom, carboxylic acids contain a hydroxyl group attached to the carbonyl carbon atom, and esters contain an oxygen atom attached to another carbon group connected to the carbonyl carbon atom. All of these compounds contain oxidized carbon atoms relative to the carbon atom of an alcohol group. 20.4 Amines and Amides The addition of nitrogen into an organic framework leads to two families of molecules. Compounds containing a nitrogen atom bonded in a hydrocarbon framework are classified as amines. Compounds that have a nitrogen atom bonded to one side of a carbonyl group are classified as amides. Amines are a basic functional group. Amines and carboxylic acids can combine in a condensation reaction to form amides. Q: Compounds containing an atom of what element, bonded in a hydrocarbon framework, are classified as amines? A:

OPTIONS:
- oxygen
- hydrogen
- ammonia
- nitrogen

A: nitrogen

Answer the following question given this paragraph: Mammals have the ability to regulate body temperature. This is an advantage, as Earth's climate went through sudden and dramatic changes. Mastodons, saber tooth tigers, hoofed mammals, whales, primates and eventually humans all lived during the Cenozoic Era ( Figure below ). Q: The ability to regulate what, which is possessed by mammals, was an advantage as earth's climate went through sudden and dramatic changes? A:
OPTIONS:
- mutations
- reflex behaviors
- hair growth
- body temperature
body temperature