Q: What type of polarization does a negative object create> Read this paragraph and choose the correct option from the provided answers: Figure 18.15 Both positive and negative objects attract a neutral object by polarizing its molecules. (a) A positive object brought near a neutral insulator polarizes its molecules. There is a slight shift in the distribution of the electrons orbiting the molecule, with unlike charges being brought nearer and like charges moved away. Since the electrostatic force decreases with distance, there is a net attraction. (b) A negative object produces the opposite polarization, but again attracts the neutral object. (c) The same effect occurs for a conductor; since the unlike charges are closer, there is a net attraction. Choices: - common polarization - simple polarization - negative polarization - opposite polarization A:
opposite polarization

Q: Active and passive forms of what enable the body to resist damage from pathogens? Read this paragraph and choose the correct option from the provided answers: Active versus Passive Immunity Immunity to pathogens, and the ability to control pathogen growth so that damage to the tissues of the body is limited, can be acquired by (1) the active development of an immune response in the infected individual or (2) the passive transfer of immune components from an immune individual to a nonimmune one. Both active and passive immunity have examples in the natural world and as part of medicine. Active immunity is the resistance to pathogens acquired during an adaptive immune response within an individual (Table 21.6). Naturally acquired active immunity, the response to a pathogen, is the focus of this chapter. Artificially acquired active immunity involves the use of vaccines. A vaccine is a killed or weakened pathogen or its components that, when administered to a healthy individual, leads to the development of immunological memory (a weakened primary immune response) without causing much in the way of symptoms. Thus, with the use of vaccines, one can avoid the damage from disease that results from the first exposure to the pathogen, yet reap the benefits of protection from immunological memory. The advent of vaccines was one of the major medical advances of the twentieth century and led to the eradication of smallpox and the control of many infectious diseases, including polio, measles, and whooping cough. Choices: - potential - stem cells - autonomy - immunity A:
immunity

Q: Q: The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of what? Read this paragraph and choose the correct option from the provided answers: The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of proteins. Although mass spectrometry is good for detecting small amounts of proteins, variations in protein expression in diseased states can be difficult to discern. Proteins are naturally unstable molecules, which makes proteomic analysis much more difficult than genomic analysis. Choices: - bacteria - acids - particles - proteins A:
A: proteins

Question: Q: What is the general shape of centrioles? Read this paragraph and choose the correct option from the provided answers: Centrioles are rod-like structures made of short microtubules. Though they are found in most eukaryotic cells, centrioles are absent in some plants and most fungi. Choices: - spherical - arc - oval - rod A:
Answer: rod

*Question*
Q: Noble gases are monatomic because they only contain one of what? Read this paragraph and choose the correct option from the provided answers: The Noble Gases The noble gases are helium, neon, argon, krypton, xenon, and radon. Because the noble gases are composed of only single atoms, they are monatomic. At room temperature and pressure, they are unreactive gases. Because of their lack of reactivity, for many years they were called inert gases or rare gases. However, the first chemical compounds containing the noble gases were prepared in 1962. Although the noble gases are relatively minor constituents of the atmosphere, natural gas contains substantial amounts of helium. Because of its low reactivity, argon is often used as an unreactive (inert) atmosphere for welding and in light bulbs. The red light emitted by neon in a gas discharge tube is used in neon lights. Choices: - ions - molecules - charges - atoms A:
**Answer**
atoms

(Q).
Q: Synthesis, decomposition, replacement, and combustion are all types of what reaction? Read this paragraph and choose the correct option from the provided answers: Types of chemical reactions include synthesis, decomposition, replacement, and combustion reactions. Choices: - natural - toxic - mineral - chemical A:
(A).
chemical