Answer the following question given this paragraph: Internal energythe sum of the kinetic and potential energies of a system's atoms and molecules. Can be divided into many subcategories, such as thermal and chemical energy. Depends only on the state of a system (such as its P , V , and T ), not on how the energy entered the system. Change in internal energy is path independent. Q: The sum of the kinetic and potential energies of a system's atoms and molecules is called what? Choices: - mechanical energy - used energy - stored energy - internal energy A:
internal energy
(Question)
Answer the following question given this paragraph: Puberty is the stage of life when a child becomes sexually mature. Puberty lasts from about 12 to 18 years of age in boys and from about 10 to 16 years of age in girls. The age when puberty begins is different from one child to another. Children that begin puberty much earlier or later than their peers may feel self-conscious. They may also worry that something is wrong with them. Usually, an early or late puberty is perfectly normal. Q: What is the name of the life stage when a child becomes sexually mature? Choices: - adolescence - maturity - adulthood - puberty A:
(Answer)
puberty
Ques: Answer the following question given this paragraph: 24.4 | Fungal Parasites and Pathogens By the end of this section, you will be able to: Describe fungal parasites and pathogens of plants Describe the different types of fungal infections in humans Explain why antifungal therapy is hampered by the similarity between fungal and animal cells Parasitism describes a symbiotic relationship in which one member of the association benefits at the expense of the other. Both parasites and pathogens harm the host; however, the pathogen causes a disease, whereas the parasite usually does not. Commensalism occurs when one member benefits without affecting the other. Q: What type of relationship occurs between organisms when one member benefits without affecting the other? Choices: - cooperative - bilateral - parasitic - commensalism A:
Ans: commensalism
(Q).
Answer the following question given this paragraph: A type of work called expansion work (or pressure-volume work) occurs when a system pushes back the surroundings against a restraining pressure, or when the surroundings compress the system. An example of this occurs during the operation of an internal combustion engine. The reaction of gasoline and oxygen is exothermic. Some of this energy is given off as heat, and some does work pushing the piston in the cylinder. The substances involved in the reaction are the system, and the engine and the rest of the universe are the surroundings. The system loses energy by both heating and doing work on the surroundings, and its internal energy decreases. (The engine is able to keep the car moving because this process is repeated many times per second while the engine is running. ) We will consider how to determine the amount of work involved in a chemical or physical change in the chapter on thermodynamics. Q: What type of work called occurs when a system pushes back the surroundings against a restraining pressure? Choices: - shape work - contrast work - retention work - expansion work A:
(A).
expansion work
Ques:Answer the following question given this paragraph: Chromosomal alterations are mutations that change chromosome structure. They occur when a section of a chromosome breaks off and rejoins incorrectly or does not rejoin at all. Possible ways these mutations can occur are illustrated in Figure below . Go to this link for a video about chromosomal alterations: http://www. youtube. com/watch?v=OrXRSqa_3lU (2:18). Q: Chromosomal alterations are mutations that change what? Choices: - Skeleton Structure - detected structure - discovery structure - chromosome structure A:

Ans:chromosome structure
Question: Answer the following question given this paragraph: Q: Ammonia, urea, and uric acid are examples of what kind of waste? Choices: - carbonous - sulphurous - oxygenous - nitrogenous A:
Answer:
nitrogenous