Problem:OPTIONS:
- conical fan
- vertical fan
- upstream fan
- alluvial fan

Answer the following question given this paragraph: In arid regions, a mountain stream may flow onto flatter land. The stream comes to a stop rapidly. The deposits form an alluvial fan ( Figure below ). Q: When a mountain stream flows onto flatter land and comes to a stop rapidly, what do the deposits form? A:
****
A: alluvial fan

Answer the following question given this paragraph: A protein is an organic compound made up of small molecules called amino acids . There are 20 different amino acids commonly found in the proteins of living things. Small proteins may contain just a few hundred amino acids, whereas large proteins may contain thousands of amino acids. Q: What is an organic compound made up of small molecules called amino acids called? A:
OPTIONS:
- a carbohydrate
- a fat
- a compound
- a protein
a protein

Answer the following question given this paragraph: Courtesy of the CDC/Debora Cartagena. Cigarettes are a major source of chemical carcinogens . Q: Cigarettes are a major source of what kind of chemical substances linked with cancer? A:
OPTIONS:
- chemicals
- pesticides
- alkaloids
- carcinogens

Answer: carcinogens

Question: Answer the following question given this paragraph: The name of a monatomic cation is simply the name of the element followed by the word ion. Thus, Na+ is the sodium ion, Al3+ is the aluminum ion, Ca2+ is the calcium ion, and so forth. We have seen that some elements lose different numbers of electrons, producing ions of different charges (Figure 3.3 "Predicting Ionic Charges"). Iron, for example, can form two cations, each of which, when combined with the same anion, makes a different compound with unique physical and chemical properties. Thus, we need a different name for each iron ion to distinguish Fe2+ from Fe3+. The same issue arises for other ions with more than one possible charge. There are two ways to make this distinction. In the simpler, more modern approach, called the Stock system, an ion's positive charge is indicated by a roman numeral in parentheses after the element name, followed by the word ion. Thus, Fe2+ is called the iron(II) ion, while Fe3+ is called the iron(III) ion. This system is used only for elements that form more than one common positive ion. We do not call the Na+ ion the sodium(I) ion because (I) is unnecessary. Sodium forms only a 1+ ion, so there is no ambiguity about the name sodium ion. The second system, called the common system, is not conventional but is still prevalent and used in the health sciences. This system recognizes that many metals have two common cations. The common system uses two suffixes (-ic and -ous) that are appended to the stem of the element name. The -ic suffix represents the greater of the two cation charges, and the -ous suffix represents the lower one. In many cases, the stem of the element name comes from the Latin name of the element. Table 3.2 "The Common System of Cation Names" lists the elements that use the common system, along with their respective cation names. Table 3.2 The Common System of Cation Names. Q: The name of a monatomic cation is simply the name of the element followed by this word? A:
OPTIONS:
- amine
- laser
- bond
- ion
Answer: ion

input with options: Answer the following question given this paragraph: on a daily basis as a preventive measure. However, aspirin can also lead to serious side effects, including increasing the risk of ulcers. A patient is well advised to consult a physician before beginning any aspirin regimen. A class of drugs collectively known as thrombolytic agents can help speed up the degradation of an abnormal clot. If a thrombolytic agent is administered to a patient within 3 hours following a thrombotic stroke, the patient's prognosis improves significantly. However, some strokes are not caused by thrombi, but by hemorrhage. Thus, the cause must be determined before treatment begins. Tissue plasminogen activator is an enzyme that catalyzes the conversion of plasminogen to plasmin, the primary enzyme that breaks down clots. It is released naturally by endothelial cells but is also used in clinical medicine. New research is progressing using compounds isolated from the venom of some species of snakes, particularly vipers and cobras, which may eventually have therapeutic value as thrombolytic agents. Q: Snake venom may join the class of drugs collectively known as thrombolytic agents, which can help speed up the degradation of an abnormal what? A:
OPTIONS:
- brain
- bleed
- bone
- clot
output: clot

Problem: OPTIONS:
- digital structure
- geological structure
- pyramid structure
- quaternary structure
Q: Answer the following question given this paragraph: Quaternary structure is a larger assembly of several polypeptide chains, now referred to as subunits of the protein. The quaternary structure is stabilized by the same interactions as the tertiary structure. Complexes of two or more polypeptides are called multimers. Specifically, a dimer contains two subunits, a trimer contains three subunits, and a tetramer contains four subunits. Q: What structure is a larger assembly of several polypeptide chains that are now referred to as subunits of the protein? A:
Answer:
quaternary structure