Q: Answer the following question given this paragraph: 23.4 The Stomach The stomach participates in all digestive activities except ingestion and defecation. It vigorously churns food. It secretes gastric juices that break down food and absorbs certain drugs, including aspirin and some alcohol. The stomach begins the digestion of protein and continues the digestion of carbohydrates and fats. It stores food as an acidic liquid called chyme, and releases it gradually into the small intestine through the pyloric sphincter. Q: What organ participates in all digestive activities except ingestion and defecation? A:

OPTIONS:
- small intestine
- tongue
- large intestine
- stomach

A: stomach

input: OPTIONS:
- air
- soil
- heat
- water Now, answer this question: Answer the following question given this paragraph: Q: What do hydrophilic substances have an affinity for? A:
A:
output: water

Answer the following question given this paragraph: Archimedes' law explains why some objects float in fluids even though they are very heavy. It all depends on how much fluid they displace. The cruise ship pictured in the opening image is extremely heavy, yet it stays afloat. If a steel ball with the same weight as the ship were placed in water, it would sink to the bottom. This is modeled in the Figure below . The reason the ball sinks is that its shape is very compact, so it displaces relatively little water. The volume of water displaced by the steel ball weighs less than the ball itself, so the buoyant force is not as great as the force of gravity pulling down on the ball. Thus, the ball sinks. Q: What law explains why some objects float and some sink. A:

OPTIONS:
- newton's law
- montenegrins ' law
- flanges ' law
- archimedes' law

Answer: archimedes' law

Problem: OPTIONS:
- fusional ions
- vacuoles ions
- carbon atoms
- monatomic ions
Q: Answer the following question given this paragraph: Monatomic ions form when a single atom gains or loses electrons. For the main group elements, cations are generally formed by removing all of the valence electrons from the atom. Since the numbers of valence electrons for the representative elements are constant within a particular group, all we need is the group number of a given element to know its charge when it becomes a cation. Group 1 elements form ions with a 1+ charge, Group 2 metal ions have a 2+ charge, and the ions of Group 13 elements tend to have a 3+ charge. Heavier p-block metals such as tin and lead are special cases and will be discussed with the transition metal ions. The name of a monatomic cation is the same as the name of the neutral element. For example, the sodium atom (Na) loses a single electron to form the sodium ion (Na + ), while Al 3+ is an aluminum ion. Q: What form when a single atom gains or loses electrons? A:
Answer: monatomic ions

Problem:OPTIONS:
- ventricular
- carotid
- radial
- aorta

Answer the following question given this paragraph: Flaps of tissue called valves separate the heart's chambers. Valves keep blood flowing in just one direction through the heart. For example, a valve at the bottom of the right atrium opens to let blood flow from the right atrium to the right ventricle. Then the valve closes so the blood can't flow back into the right atrium. Q: What is the largest artery in the body called? A:
****
A: aorta

Problem:OPTIONS:
- an occluded front
- a stationary front
- a snow day
- a cold front

Answer the following question given this paragraph: A cold front occurs when a cold air mass runs into a warm air mass. This is shown in Figure below . The cold air mass moves faster than the warm air mass and lifts the warm air mass out of its way. As the warm air rises, its water vapor condenses. Clouds form, and precipitation falls. If the warm air is very humid, precipitation can be heavy. Temperature and pressure differences between the two air masses cause winds. Winds may be very strong along a cold front. Q: What occurs when a cold air mass runs into a warm air mass? A:
****
A:
a cold front