Q: What is the term for a theoretical framework for describing evolutionary change in populations through the change in allele frequencies? Read this paragraph and choose the correct option from the provided answers: CHAPTER SUMMARY 11.1 Discovering How Populations Change Evolution by natural selection arises from three conditions: individuals within a species vary, some of those variations are heritable, and organisms have more offspring than resources can support. The consequence is that individuals with relatively advantageous variations will be more likely to survive and have higher reproductive rates than those individuals with different traits. The advantageous traits will be passed on to offspring in greater proportion. Thus, the trait will have higher representation in the next and subsequent generations leading to genetic change in the population. The modern synthesis of evolutionary theory grew out of the reconciliation of Darwin's, Wallace's, and Mendel's thoughts on evolution and heredity. Population genetics is a theoretical framework for describing evolutionary change in populations through the change in allele frequencies. Population genetics defines evolution as a change in allele frequency over generations. In the absence of evolutionary forces allele frequencies will not change in a population; this is known as Hardy-Weinberg equilibrium principle. However, in all populations, mutation, natural selection, genetic drift, and migration act to change allele frequencies. Choices: - percent genetics - density genetics - total genetics - population genetics A:
population genetics

Q: What type of gas is used to fill glass tubes of lighted signs? Read this paragraph and choose the correct option from the provided answers: Noble gases are also used to fill the glass tubes of lighted signs like the one in the Figure below . Although noble gases are chemically nonreactive, their electrons can be energized by sending an electric current through them. When this happens, the electrons jump to a higher energy level. When the electrons return to their original energy level, they give off energy as light. Different noble gases give off light of different colors. Neon gives off reddish-orange light, like the word "Open" in the sign below. Krypton gives off violet light and xenon gives off blue light. Choices: - synthetic - inert - natural - noble A:
noble

Q: What is located beneath the lithosphere? Read this paragraph and choose the correct option from the provided answers: Beneath the lithosphere, the asthenosphere is solid rock that can flow. Choices: - hydropshere - troposphere - magnetosphere - asthenosphere A:
asthenosphere

Q: The number of neutrons and electrons may vary or change in an atom. what happens to the number of protons? Read this paragraph and choose the correct option from the provided answers: The number of protons per atom is always the same for a given element. However, the number of neutrons may vary, and the number of electrons can change. Choices: - decreases - increases - depends - remains the same A:
remains the same