Answer the following question given this paragraph: Properties of matter fall into one of two categories. If the property depends on the amount of matter present, it is an extensive property. The mass and volume of a substance are examples of extensive properties; for instance, a gallon of milk has a larger mass and volume than a cup of milk. The value of an extensive property is directly proportional to the amount of matter in question. If the property of a sample of matter does not depend on the amount of matter present, it is an intensive property. Temperature is an example of an intensive property. If the gallon and cup of milk are each at 20 C (room temperature), when they are combined, the temperature remains at 20 C. As another example, consider the distinct but related properties of heat and temperature. A drop of hot cooking oil spattered on your arm causes brief, minor discomfort, whereas a pot of hot oil yields severe burns. Both the drop and the pot of oil are at the same temperature (an intensive property), but the pot clearly contains much more heat (extensive property). Q: Extensive and intensive are categories of properties that apply to what? Choices: - volume - weight - height - matter A:
matter
Answer the following question given this paragraph: McKay Savage. Color vision may have developed to help our ancestors distinguish between ripe and unripe fruits . CC BY 2.0. Q: What may have developed to help our ancestors distinguish between ripe and unripe fruits? Choices: - fine motor skills - acute hearing - night vision - color vision A:
color vision
Q: Answer the following question given this paragraph: Sodium belongs to the group of elements called the alkali metals. An alkaline solution is another name for a solution that is basic. All alkali metals react readily with water to produce the metal hydroxide and hydrogen gas. The resulting solutions are basic. Q: What group of elements does sodium belong to? Choices: - halogens - metalloids - noble gases - alkali metals A:
A: alkali metals
Question: Answer the following question given this paragraph: Sexual reproduction In eukaryotes, the major mechanism for shuffling genes is sexual reproduction. Because sex (usually) requires that organisms cooperate sex represents an example of social evolution. So what are the benefits of sexual reproduction? 342 Sexual reproduction involves the alternation of diploid (two copies of each chromosome) and haploid (one copy of each chromosome) cell types. In a diploid cell, the two copies of a particular gene can be different, the the organisms is said to be heterozygous for that gene. Different alleles can (but do not necessarily do) encode functionally distinct gene products and can be associated with different phenotypes (discussed in greater detail in the future two-semester version). We can then characterize different alleles with respect to one one another. Assume that allele-1 is associated with phenotype-1 342. Q: In eukaryotes, the major mechanism for shuffling genes is what? Choices: - suggesting reproduction - subject reproduction - asexual reproduction - sexual reproduction A:
Answer: sexual reproduction
*Question*
Answer the following question given this paragraph: Viewed from Earth, Mars is red. This is due to large amounts of iron in the soil. The ancient Greeks and Romans named the planet Mars after the god of war because the planet's red color reminded them of blood. Mars has only a very thin atmosphere made up mostly of carbon dioxide. Q: Mars appears red because of large amounts of which element in the soil? Choices: - carbon - coal - mercury - iron A:
**Answer**
iron
Q: Answer the following question given this paragraph: Algae are like plants mainly because they contain chloroplasts. This allows them to make food by photosynthesis. Algae are important producers in water-based ecosystems such as the ocean. On the other hand, algae lack other plant structures. For example, they don't have roots, stems, or leaves. Also unlike plants, some algae can move. They may move with pseudopods or flagella. Q: Algae are like plants mainly because they contain what? Choices: - organelles - cells - cell wall - chloroplasts A:
A: chloroplasts