*Question*
Q: What cycle completes the breakdown of glucose begun in glycolysis? Read this paragraph and choose the correct option from the provided answers: The Krebs cycle completes the breakdown of glucose begun in glycolysis. If oxygen is present, pyruvate enters the mitochondria and is converted to AcetylCoA. AcetylCoA enters the cycle by combining with 4-carbon oxaloacetate. Study the diagram to confirm that each turn of the cycle (two for each glucose) stores energy in 3 NADH+H + , one FADH 2 , and one ATP (from GTP), and releases 2 CO 2 . The Krebs cycle is also known as the Citric Acid Cycle or the tricarboxylic acid cycle (TCA cycle). Choices: - bacterium - vireos - priebus - krebs A:
**Answer**
krebs

*Question*
Q: As adults, amphibians are completely _______, meaning they feed on other animals. Read this paragraph and choose the correct option from the provided answers: Amphibians are an important food source for animals such as birds, snakes, raccoons, and fish. Amphibians are also important predators. As larvae, they feed mainly on small aquatic animals such as water insects. They may also feed on algae. As adults, amphibians are completely carnivorous . They may catch and eat worms, snails, and insects, as the frog in Figure below is doing. Unlike other amphibians, caecilians are burrowers . They use their head to dig in the soil, and they feed on earthworms and other annelids. Caecilians can be found in moist soil near rivers and streams in tropical regions. Choices: - herbivorous - monogamous - omnivorous - carnivorous A:
**Answer**
carnivorous

*Question*
Q: What (nh3) is one of the few thermodynamically stable binary compounds of nitrogen with a nonmetal? Read this paragraph and choose the correct option from the provided answers: Note the Pattern Few binary molecular compounds of nitrogen are formed by the direct reaction of the elements. At elevated temperatures, nitrogen reacts with highly electropositive metals to formionic nitrides, such as Li3N and Ca3N2. These compounds consist of ionic lattices formed by M n+ and N3 ions. Just as boron forms interstitial borides and carbon forms interstitial carbides, with less electropositive metals nitrogen forms a range ofinterstitial nitrides, in which nitrogen occupies holes in a close-packed metallic structure. Like the interstitial carbides and borides, these substances are typically very hard, high-melting materials that have metallic luster and conductivity. Nitrogen also reacts with semimetals at very high temperatures to produce covalent nitrides, such as Si3N4 and BN, which are solids with extended covalent network structures similar to those of graphite or diamond. Consequently, they are usually high melting and chemically inert materials. Ammonia (NH3) is one of the few thermodynamically stable binary compounds of nitrogen with a nonmetal. It is not flammable in air, but it burns in an O2 atmosphere: Equation 22.30. Choices: - liquid nitrogen - acetic acid - nitrous oxide - ammonia A:
**Answer**
ammonia

*Question*
Q: Space telescopes avoid such problems completely since they orbit outside the what? Read this paragraph and choose the correct option from the provided answers: Telescopes on Earth all have one big problem: Incoming light must pass through the atmosphere. This blocks some wavelengths of radiation. Also, motion in the atmosphere distorts light. You see this when you see stars twinkling in the night sky. Many observatories are built on high mountains. There is less air above the telescope, so there is less interference from the atmosphere. Space telescopes avoid such problems completely since they orbit outside the atmosphere. Choices: - ozone layer - galaxy - earth's crust - atmosphere A:
**Answer**
atmosphere