Answer the following question given this paragraph: The vas deferens is a tube that carries sperm from the epididymis to the urethra. Q: What is the name of the tube that carries sperm from the epididymis to the urethra? Choices: - prostate gland - ureter - fallopian tube - vas deferens A:
vas deferens
Answer the following question given this paragraph: Q: The skeleton of lampreys is made of what? Choices: - ligament - collagen - chitin - cartilage A:
cartilage
Q: Answer the following question given this paragraph: carbon fiberepoxy and boron fiberepoxy composites. Compared with metals, these materials are 25% 50% lighter and thus reduce operating costs. Similarly, the space shuttle payload bay doors and panels are made of a carbon fiberepoxy composite. The structure of the Boeing 787 has been described as essentially one giant macromolecule, where everything is fastened through cross-linked chemical bonds reinforced with carbon fiber. Metal-matrix composites consist of metals or metal alloys reinforced with fibers. They offer significant advantages for high-temperature applications but pose major manufacturing challenges. For example, obtaining a uniform distribution and alignment of the reinforcing fibers can be difficult, and because organic polymers cannot survive the high temperatures of molten metals, only fibers composed of boron, carbon, or ceramic (such as silicon carbide) can be used. Aluminum alloys reinforced with boron fibers are used in the aerospace industry, where their strength and lightweight properties make up for their relatively high cost. The skins of hypersonic aircraft and structural units in the space shuttle are made of metal-matrix composites. Ceramic-matrix composites contain ceramic fibers in a ceramic matrix material. A typical example is alumina reinforced with silicon carbide fibers. Combining the two very high-melting-point materials results in a composite that has excellent thermal stability, great strength, and corrosion resistance, while the SiC fibers reduce brittleness and cracking. Consequently, these materials are used in very hightemperature applications, such as the leading edge of wings of hypersonic airplanes and jet engine parts. They are also used in the protective ceramic tiles on the space shuttle, which contain short fibers of pure SiO2 mixed with fibers of an aluminumboronsilicate ceramic. These tiles are excellent thermal insulators and extremely light (their density is only about 0.2 g/cm3). Although their surface reaches a temperature of about 1250C during... Q: The structure of the boeing 787 has been described as essentially one giant macromolecule, where everything is fastened through cross-linked chemical bonds reinforced with this? Choices: - nitrogen fiber - non-covalent interaction - metal-metal bonds - carbon fiber A:
A: carbon fiber
Question: Answer the following question given this paragraph: The DNA double helix. The two sides are the sugar-phosphate backbones, composed of alternating phosphate groups and deoxyribose sugars. The nitrogenous bases face the center of the double helix. As the base-pairing rules tell us, A always pairs with T, and G always pairs with C. Q: Which structure includes sugar-phosphate "backbones", composed of alternating phosphate groups and deoxyribose sugars, and nitrogenous bases? Choices: - molecule double helix - mulecular triplex - dna triple helix - dna double helix A:
Answer: dna double helix
*Question*
Answer the following question given this paragraph: There are many different types of symbiotic interactions between organisms. Clockwise from top left: Escherichia coli bacteria live inside your intestines in a mutualistic relationship: the bacteria produce Vitamin K for you, and they get their food from what you eat. Clownfish that live among the tentacles of sea anemones protect the anemone from anemone-eating fish, and in turn the stinging tentacles of the anemone protect the clownfish from its predators (a special mucus on the clownfish protects it from the stinging tentacles). Similar to the E. coli , this bee has a mutualistic relationship with the flower, the bee feeds from the flower, and the flower gets pollinated by the bee. Lions are predators that feed on other organisms such as this Cape buffalo. Q: In what part of the body do escherichia coli bacteria live? Choices: - your brain - your kidneys - your urethra - your intestines A:
**Answer**
your intestines
Q: Answer the following question given this paragraph: Test wells are drilled to monitor groundwater pollution. Q: What are drilled to monitor groundwater pollution? Choices: - sewers - aquifers - draining wells - test wells A:
A: test wells