input: OPTIONS:
- vasodilation
- inhibition
- digestion
- vasoconstriction Now, answer this question: Answer the following question given this paragraph: pressure and maintaining blood flow. Ultimately, however, blood volume will need to be restored, either through physiological processes or through medical intervention. In response to blood loss, stimuli from the baroreceptors trigger the cardiovascular centers to stimulate sympathetic responses to increase cardiac output and vasoconstriction. This typically prompts the heart rate to increase to about 180200 contractions per minute, restoring cardiac output to normal levels. Vasoconstriction of the arterioles increases vascular resistance, whereas constriction of the veins increases venous return to the heart. Both of these steps will help increase blood pressure. Sympathetic stimulation also triggers the release of epinephrine and norepinephrine, which enhance both cardiac output and vasoconstriction. If blood loss were less than 20 percent of total blood volume, these responses together would usually return blood pressure to normal and redirect the remaining blood to the tissues. Additional endocrine involvement is necessary, however, to restore the lost blood volume. The angiotensin-reninaldosterone mechanism stimulates the thirst center in the hypothalamus, which increases fluid consumption to help restore the lost blood. More importantly, it increases renal reabsorption of sodium and water, reducing water loss in urine output. The kidneys also increase the production of EPO, stimulating the formation of erythrocytes that not only deliver oxygen to the tissues but also increase overall blood volume. Figure 20.21 summarizes the responses to loss of blood volume. Q: Sympathetic stimulation also triggers the release of epinephrine and norepinephrine, which enhance both cardiac output and what else? A:
A:
output: vasoconstriction

Answer the following question given this paragraph: projectile motion: A form of motion where a particle (called a projectile) is thrown obliquely near the earth's surface, & it moves along a curved path under the action of gravity. The path followed by a projectile motion is called its trajectory. Projectile motion only occurs when there is one force applied at the beginning of the trajectory after which there is no interference apart from gravity. Q: What type of motion only occurs when there is one force applied at the beginning of the trajectory after which there is no interference apart from gravity? A:

OPTIONS:
- velocity
- propellant
- thrust
- projectile

Answer: projectile

Problem: OPTIONS:
- cluster mellitus
- populations mellitus
- sugar mellitus
- diabetes mellitus
Q: Answer the following question given this paragraph: Diabetes mellitus is a disorder of glucose metabolism in which insulin production by the pancreas is impaired. Since insulin helps glucose enter the cells, a decrease of this hormone means that glucose cannot be used in its normal fashion. When this happens, the body begins to break down fats, producing a decrease in blood pH. Chemical systems in the body can balance this pH shift for a while, but excessive acid production can create serious problems if not corrected by administering insulin to restore normal glucose use. Q: What is a disorder of glucose metabolism in which insulin production by the pancreas is impaired? A:
Answer: diabetes mellitus

Problem:OPTIONS:
- alloy
- plastic
- light
- element

Answer the following question given this paragraph: An element is pure substance that cannot be broken down into other substances. Each element has a particular set of properties that, taken together, distinguish it from all other elements. Table below lists the major elements in the human body. As you can see, you consist mainly of the elements oxygen, carbon, and hydrogen. Q: What is the term for a pure substance that possesses unique properties and cannot be broken down into other substances? A:
****
A: element

Answer the following question given this paragraph: NaNO 3(s) + H 2 SO 4(l) NaHSO 4(s) + HNO 3(g) The Ostwald process is the commercial method for producing nitric acid. This process involves the oxidation of ammonia to nitric oxide, NO; oxidation of nitric oxide to nitrogen dioxide, NO2; and further oxidation and hydration of nitrogen dioxide to form nitric acid: 4NH 3(g) + 5O 2(g) 4NO(g) + 6H 2 O(g) 2NO(g) + O 2(g) 2NO 2(g) 3NO 2(g) + H 2 O(l) 2HNO 3(aq) + NO(g) Or 4NO 2(g) + O 2(g) + 2H 2 O(g) 4HNO 3(l) Pure nitric acid is a colorless liquid. However, it is often yellow or brown in color because NO2 forms as the acid decomposes. Nitric acid is stable in aqueous solution; solutions containing 68% of the acid are commercially available concentrated nitric acid. It is both a strong oxidizing agent and a strong acid. The action of nitric acid on a metal rarely produces H2 (by reduction of H+) in more than small amounts. Instead, the reduction of nitrogen occurs. The products formed depend on the concentration of the acid, the activity of the metal, and the temperature. Normally, a mixture of nitrates, nitrogen oxides, and various reduction products form. Less active metals such as copper, silver, and lead reduce concentrated nitric acid primarily to nitrogen dioxide. The reaction of dilute nitric acid with copper produces NO. In each case, the nitrate salts of the metals crystallize upon evaporation of the resultant solutions. Nonmetallic elements, such as sulfur, carbon, iodine, and phosphorus, undergo oxidation by concentrated nitric acid to their oxides or oxyacids, with the formation of NO2: S(s) + 6HNO 3(aq) H 2 SO 4(aq) + 6NO 2(g) + 2H 2 O(l) C(s) + 4HNO 3(aq) CO 2(g) + 4NO 2(g) + 2H 2 O(l) Nitric acid oxidizes many compounds; for example, concentrated nitric acid readily oxidizes hydrochloric acid to chlorine and chlorine dioxide. A mixture of one part concentrated nitric acid and three parts concentrated hydrochloric acid (called aqua regia, which means royal water) reacts vigorously with metals. This mixture is particularly useful in... Q: The ostwald process is the commercial method for producing what? A:
OPTIONS:
- citric acid
- deoxyribonucleic acid
- chlorine
- nitric acid
nitric acid

Answer the following question given this paragraph: farm fungi as a supply of food. Lichens are a symbiotic relationship between a fungus and a photosynthetic organism, usually an alga or cyanobacterium. The photosynthetic organism provides energy derived from light and carbohydrates, while the fungus supplies minerals and protection. Some animals that consume fungi help disseminate spores over long distances. Q: What have a symbiotic relationship between a fungus and a photosynthetic organism? A:
OPTIONS:
- crustaceans
- amphibians
- sponges
- lichens

Answer:
lichens