Q: Answer the following question given this paragraph: The bottom two chambers of the heart are called the left and right ventricles. The ventricles receive blood from the atria and pump it out of the heart, either to the lungs or to the rest of the body. Q: What structures receive blood from the atria and pump it out of the heart? A:

OPTIONS:
- valves
- muscles
- Vascular Fibers
- ventricles

A: ventricles

input: OPTIONS:
- gas
- mercury
- glass
- dust Now, answer this question: Answer the following question given this paragraph: Like the other outer planets, Neptune has rings of ice and dust. These rings are much thinner and fainter than Saturn's. Neptune's rings may be unstable. They may change or disappear in a relatively short time. Q: Like the other outer planets, neptune has rings of ice and what? A:
A:
output: dust

Answer the following question given this paragraph: Most archaea are chemotrophs and derive their energy and nutrients from breaking down molecules in their environment. A few species of archaea are photosynthetic and capture the energy of sunlight. Unlike bacteria, which can be parasites and are known to cause a variety of diseases, there are no known archaea that act as parasites. Some archaea do live within other organisms. But these archea form mutualistic relationships with their host, where both the archaea and the host benefit. In other words, they assist the host in some way, for example by helping to digest food. Q: Are the majority of archaea chemotrophs or photosynthetic? A:

OPTIONS:
- photosynthetics
- neither
- autotrophs
- chemotrophs

Answer: chemotrophs

Problem: OPTIONS:
- digestive system
- reproductive system
- respiratory system
- cardiovascular system
Q: Answer the following question given this paragraph: Q: What is the closed circulatory system of humans and other vertebrates called? A:
Answer: cardiovascular system

Problem:OPTIONS:
- glacial water
- fresh water
- spring water
- seawater

Answer the following question given this paragraph: You know that ocean water is salty. How salty is it? What is the salinity of seawater? Average seawater is about 3.5% salt. The amount is different if there is a nearby source of freshwater. It is also different if there is a lot of evaporation in an area. How do you think these things affect seawater salinity? Seawater also contains other substances like sugars, acids, bases, and organic molecules. Q: What water is about 3.5% salt? A:
****
A: seawater

Problem:OPTIONS:
- diluting
- hydrating
- concentrating
- dehydrating

Answer the following question given this paragraph: The strong affinity of concentrated sulfuric acid for water makes it a good dehydrating agent. It is possible to dry gases and immiscible liquids that do not react with the acid by passing them through the acid. Sulfuric acid is a strong diprotic acid that ionizes in two stages. In aqueous solution, the first stage is essentially complete. The secondary ionization is not nearly so complete, and HSO 4 is a moderately strong acid (about 25% ionized in solution of a HSO 4 salt: Ka = 1.2 102). Being a diprotic acid, sulfuric acid forms both sulfates, such as Na2SO4, and hydrogen sulfates, such as NaHSO4. Most sulfates are soluble in water; however, the sulfates of barium, strontium, calcium, and lead are only slightly soluble in water. Among the important sulfates are Na2SO410H2O and Epsom salts, MgSO47H2O. Because the HSO 4 ion is an acid, hydrogen sulfates, such as NaHSO4, exhibit acidic behavior, and this compound is the primary ingredient in some household cleansers. Hot, concentrated sulfuric acid is an oxidizing agent. Depending on its concentration, the temperature, and the strength of the reducing agent, sulfuric acid oxidizes many compounds and, in the process, undergoes reduction to SO2, HSO 3 , SO 3 2, S, H2S, or S2. Sulfur dioxide dissolves in water to form a solution of sulfurous acid, as expected for the oxide of a nonmetal. Sulfurous acid is unstable, and it is not possible to isolate anhydrous H2SO3. Heating a solution of sulfurous acid expels the sulfur dioxide. Like other diprotic acids, sulfurous acid ionizes in two steps: The hydrogen sulfite ion, HSO 3 , and the sulfite ion, SO 3 2, form. Sulfurous acid is a moderately strong acid. Ionization is about 25% in the first stage, but it is much less in the second (Ka1 = 1.2 102 and Ka2 = 6.2 108). In order to prepare solid sulfite and hydrogen sulfite salts, it is necessary to add a stoichiometric amount of a base to a sulfurous acid solution and then evaporate the water. These salts also form from the reaction of SO2 with... Q: The strong affinity of concentrated sulfuric acid for water makes it a good agent of what? A:
****
A:
dehydrating