Question: Answer the following question given this paragraph: Like water in the ocean, air in the atmosphere exerts pressure that increases with depth. Most gas molecules in the atmosphere are pulled close to Earth's surface by gravity. As a result, air pressure decreases quickly at lower altitudes and then more slowly at higher altitudes. This is illustrated in Figure below . Air pressure is greatest at sea level, where the depth of the atmosphere is greatest. At higher altitudes, the pressure is less because the depth of the atmosphere is less. For example, on top of Mount Everest, the tallest mountain on Earth, air pressure is only about one-third of the pressure at sea level. At such high altitudes, low air pressure makes it hard to breathe and is dangerous to human health. Q: Most gas molecules in the atmosphere are pulled close to earth's surface by what force? A:
OPTIONS:
- weight
- light
- traction
- gravity
Answer: gravity

input with options: Answer the following question given this paragraph: About 67 percent of the water, Na+, and K+ entering the nephron is reabsorbed in the PCT and returned to the circulation. Almost 100 percent of glucose, amino acids, and other organic substances such as vitamins are normally recovered here. Some glucose may appear in the urine if circulating glucose levels are high enough that all the glucose transporters in the PCT are saturated, so that their capacity to move glucose is exceeded (transport maximum, or Tm). In men, the maximum amount of glucose that can be recovered is about 375 mg/min, whereas in women, it is about 300 mg/min. This recovery rate translates to an arterial concentration of about 200 mg/dL. Though an exceptionally high sugar intake might cause sugar to appear briefly in the urine, the appearance of glycosuria usually points to type I or II diabetes mellitus. The transport of glucose from the lumen of the PCT to the interstitial space is similar to the way it is absorbed by the small intestine. Both glucose and Na+ bind simultaneously to the same symport proteins on the apical surface of the cell to be transported in the same direction, toward the interstitial space. Sodium moves down its electrochemical and concentration gradient into the cell and takes glucose with it. Na+ is then actively pumped out of the cell at the basal surface of the cell into the interstitial space. Glucose leaves the cell to enter the interstitial space by facilitated diffusion. The energy to move glucose comes from the Na+/K+ ATPase that pumps Na+ out of the cell on the basal surface. Fifty percent of Cl and variable quantities of Ca++, Mg++, and HPO 24 are also recovered in the PCT. Recovery of bicarbonate (HCO3) is vital to the maintenance of acidbase balance, since it is a very powerful and fast-acting buffer. An important enzyme is used to catalyze this mechanism: carbonic anhydrase (CA). This same enzyme and reaction is used in red blood cells in the transportation of CO2, in the stomach to produce hydrochloric acid, and in the pancreas to produce HCO3 to... Q: Carbonic anhydrase plays what role to achieve a variety of results involving different organs? A:
OPTIONS:
- blocker
- sequence
- inhibition
- enzyme
output: enzyme

Q: Answer the following question given this paragraph: Whenever electrons are transferred between objects, neutral matter becomes charged. For example, when atoms lose or gain electrons they become charged particles called ions. Q: What happens to neutral matter when electrons are transferred between objects? A:

OPTIONS:
- osmosis
- it stays neutral
- it dissolves itself
- it becomes charged

A: it becomes charged

input: OPTIONS:
- lungs
- heart tissue
- plasma
- the bone marrow Now, answer this question: Answer the following question given this paragraph: White blood cells (WBCs) are usually larger than red blood cells. They do not have hemoglobin and do not carry oxygen. White blood cells make up less than one percent of the blood's volume. Most WBCs are made in the bone marrow, and some mature in the lymphatic system. There are different WBCs with different jobs. WBCs defend the body against infection by bacteria, viruses, and other pathogens . WBCs do have a nucleus and other organelles. Q: Where are most white blood cells made? A:
A:
output: the bone marrow

Answer the following question given this paragraph: The survival of every ecosystem is dependent on the producers. Without producers capturing the energy from the sun and turning it into glucose, an ecosystem could not exist. On land, plants are the dominant producers. Phytoplankton , tiny photosynthetic organisms, are the most common producers in the oceans and lakes. Algae, which is the green layer you might see floating on a pond, are an example of phytoplankton. Q: Where do producers in an ecosystem generally get their energy from? A:

OPTIONS:
- predators
- chlorophyll
- consumers
- the sun

Answer: the sun

Q: Answer the following question given this paragraph: Arachnids also have two additional pairs of appendages. Describe these two pairs. Q: How many additional pairs of appendages do arachnids have? A:

OPTIONS:
- 0
- 4
- 6
- 2

A:
2