Answer the following question given this paragraph: The extent to which a substance may be dissolved in water, or any solvent, is quantitatively expressed as its solubility, defined as the maximum concentration of a substance that can be achieved under specified conditions. Substances with relatively large solubilities are said to be soluble. A substance will precipitate when solution conditions are such that its concentration exceeds its solubility. Substances with relatively low solubilities are said to be insoluble, and these are the substances that readily precipitate from solution. More information on these important concepts is provided in the text chapter on solutions. For purposes of predicting the identities of solids formed by precipitation reactions, one may simply refer to patterns of solubility that have been observed for many ionic compounds (Table 4.1). Solubilities of Common Ionic Compounds in Water Soluble compounds contain group 1 metal cations (Li+, Na+, K+, Rb+, and Cs+). Q: The extent to which a substance may be dissolved in water or another solvent is known as what? Choices: - humidity - flexibility - turbidity - solubility A:
solubility
Answer the following question given this paragraph: Spermatogonia lining the seminiferous tubule undergo mitosis to form primary spermatocytes , which are also diploid. The primary spermatocytes undergo the first meiotic division to form secondary spermatocytes , which are haploid. Spermatocytes make up the next layer of cells inside the seminiferous tubule. Finally, the secondary spermatocytes complete meiosis to form spermatids . Spermatids make up a third layer of cells in the tubule. Q: What do secondary spermatocytes form when completing meiosis? Choices: - pores - semen - sporozoans - spermatids A:
spermatids
Q: Answer the following question given this paragraph: The evolution of life on Earth wasn't always smooth and steadyfar from it. Living things had to cope with some astounding changes. Giant meteorites struck Earth's surface. Continents drifted and shifted. Ice ages buried the planet in snow and ice for millions of years at a time. At least five times, many, if not most, of Earth's living things went extinct. Extinction occurs when a species completely dies out and no members of the species remain. But life on Earth was persistent. Each time, it came back more numerous and diverse than before. Q: Ice ages, continental drift, and giant meteorites striking earth have caused what phenomenon? Choices: - gravity - waves - depletion - extinction A:
A: extinction
Question: Answer the following question given this paragraph: Diagram of a typical prokaryotic cell. Among other things, prokaryotic cells have a plasma membrane, cytoplasm, ribosomes, and DNA. Prokaryotes do not have membrane-bound organelles or a cell nucleus. Q: What are unique about prokaryotic cells' organelles? Choices: - no cell walls - no epidermis - only membrane - bound - not membrane-bound A:
Answer: not membrane-bound
*Question*
Answer the following question given this paragraph: T F = 9 T C + 32 5 5 T C = T F 32 9 T K = T C + 273.15 T C = T K 273.15 Systems are in thermal equilibrium when they have the same temperature. Thermal equilibrium occurs when two bodies are in contact with each other and can freely exchange energy. The zeroth law of thermodynamics states that when two systems, A and B, are in thermal equilibrium with each other, and B is in thermal equilibrium with a third system, C, then A is also in thermal equilibrium with C. 13.2 Thermal Expansion of Solids and Liquids Thermal expansion is the increase, or decrease, of the size (length, area, or volume) of a body due to a change in temperature. Thermal expansion is large for gases, and relatively small, but not negligible, for liquids and solids. Linear thermal expansion is. Q: Systems are in thermal equilibrium when they have the same of what measurement? Choices: - oxygen - density - mass - temperature A:
**Answer**
temperature
*Question*
Answer the following question given this paragraph: This increase in global temperature will cause the sea level to rise. It is also expected to produce an increase in extreme weather events and change the amount of precipitation. Global warming may also cause food shortages and species extinction. Q: What will happen to sea levels due to increased global temperatures? Choices: - Drop - reverse - surge - rise A:
**Answer**
rise