Problem: OPTIONS:
- ion exchange
- evaporation
- entropy
- energy
Q: Answer the following question given this paragraph: (a) Initially, the system (a copper penny and concentrated nitric acid) is at atmospheric pressure. (b) When the penny is added to the nitric acid, the volume of NO2 gas that is formed causes the piston to move upward to maintain the system at atmospheric pressure. In doing so, the system is performing work on its surroundings. The symbol E in represents the internal energy of a system, which is the sum of the kinetic energy and potential energy of all its components. It is the change in internal energy that produces heat plus work. To measure the energy changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity calledenthalpy (H) (from the Greek enthalpein, meaning "to warm"). The enthalpy of a system is defined as the sum of its internal energy E plus the product of its pressure Pand volume V:. Q: To measure what changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity, calledenthalpy? A:
Answer: energy

Problem:OPTIONS:
- elliptical clusters
- elongated clusters
- galaxy
- globular clusters

Answer the following question given this paragraph: Television broadcasts also use radio waves. Sounds are encoded with frequency modulation, and pictures are encoded with amplitude modulation. The encoded radio waves are broadcast from a TV tower like the one in Figure below . When the waves are received by television sets, they are decoded and changed back to sounds and pictures. Q: What are groups of tens to hundreds of thousands of stars held tightly together by gravity called? A:
****
A: globular clusters

Answer the following question given this paragraph: Unsaturated fats are found mainly in plant foods, such as vegetable oil, olive oil, and nuts. Unsaturated lipids are also found in fish, such as salmon. Unsaturated lipids are needed in small amounts for good health. Most lipids in your diet should be unsaturated. Q: Most lipids in your diet should be what type, found mainly in plant sources and also in fish? A:
OPTIONS:
- fat
- aromatic
- saturated
- unsaturated
unsaturated

Answer the following question given this paragraph: 34.1 | Digestive Systems By the end of this section, you will be able to: Explain the processes of digestion and absorption Compare and contrast different types of digestive systems Explain the specialized functions of the organs involved in processing food in the body Describe the ways in which organs work together to digest food and absorb nutrients Animals obtain their nutrition from the consumption of other organisms. Depending on their diet, animals can be classified into the following categories: plant eaters (herbivores), meat eaters (carnivores), and those that eat both plants and animals (omnivores). The nutrients and macromolecules present in food are not immediately accessible to the cells. There are a number of processes that modify food within the animal body in order to make the nutrients and organic molecules accessible for cellular function. As animals evolved in complexity of form and function, their digestive systems have also evolved to accommodate their various dietary needs. Q: Animals that have feeding patterns that are somewhere between that of herbivores and carnivores can be called what? A:
OPTIONS:
- insectivores
- nematodes
- megavores
- omnivores

Answer: omnivores

Question: Answer the following question given this paragraph: Diffusion is the movement of a substance from an area of a higher amount toward an area of lower amount. A concentration gradient initially exists across the cell membrane. Equilibrium is reached when there is an equal amount of the substance on both sides of the membrane. Q: What do you call the movement of a substance from an area of a higher amount toward an area of lower amount? A:
OPTIONS:
- filtration
- extraction
- precipitation
- diffusion
Answer: diffusion

input: OPTIONS:
- cool
- cold
- both
- warm Now, answer this question: Answer the following question given this paragraph: Coral reefs are found only in warm water. Coal swamps are also found in tropical and subtropical environments. Wegener discovered ancient coal seams and coral reef fossils in areas that are much too cold today. Wegener thought that the continents have moved since the time of Pangaea. Q: Are coral reefs found in warm or cold water? A:
A:
output:
warm