Answer the following question given this paragraph: The combustion of propane gas produces carbon dioxide and water vapor. Q: The combustion of propane gas produces carbon dioxide and what else? Choices: - methane - carbon monoxide - phosphorous - water vapor A:
water vapor

Answer the following question given this paragraph: Imagine now that you have a second cup with 100ml of water, and you add 45 grams of table sugar to the water. Just like the first cup, the sugar is the solute, and the water is the solvent. But now you have two mixtures of different solute concentrations. In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is hypertonic , and the solution with the lower solute concentration is hypotonic . Solutions of equal solute concentration are isotonic . The first sugar solution is hypotonic to the second solution. The second sugar solution is hypertonic to the first. Q: In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is called what? Choices: - acetic - hypothermic - hydrophilic - hypertonic A:
hypertonic

Answer the following question given this paragraph: Most invertebrates reproduce sexually. Diploid adults produce haploid gametes (sperm and eggs). In some species, the same individuals produce both sperm and eggs. In other species, sperm and eggs are produced by separate male and female individuals. Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. The zygote develops into an embryo and eventually into a new adult organism. On the way, it may pass through one or more larval stages. A larva (plural, larvae) is a juvenile, or immature, stage of an animal. It is generally quite different in form and function from the adult form of the species. For example, the larva may be able to swim freely, whereas the adult must remain permanently attached to a solid surface. Q: How do invertebrates reproduce? Choices: - randomly - constantly - asexually - sexually A:
sexually

Answer the following question given this paragraph: Viruses can be found almost anywhere there is life, including living within prokaryotes. A phage is a virus that infects prokaryotes. Phages are estimated to be the most widely distributed and diverse entities in the biosphere, even more numerous than prokaryotic organisms. Phages can be found everywhere their hosts are found, such as in soil, in the intestine of animals, or seawater. Up to 10 9 virions have been found in a milliliter of seawater, and up to 70 percent of marine bacteria may be infected by phages. They are also found in drinking water and in some foods, including fermented vegetables and meats, where they control the growth of bacteria. Q: What is the most widely distributed organism around? Choices: - viruses - cockroaches - microbes - phages A:
phages