Answer the following question given this paragraph: In a fullerene, carbon atoms are bonded to three other atoms in a soccer ball pattern. The bonds are weak, so fullerenes can dissolve and form solutions. Q: In a fullerene, what atoms are bonded to three other atoms in a soccer ball pattern? Choices: - hydrogen - oxygen - positive - carbon A:
carbon
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Answer the following question given this paragraph: Figure 23.16 The complex process of sexual reproduction in Paramecium creates eight daughter cells from two original cells. Each cell has a macronucleus and a micronucleus. During sexual reproduction, the macronucleus dissolves and is replaced by a micronucleus. (credit "micrograph": modification of work by Ian Sutton; scale-bar data from Matt Russell). Q: During sexual reproduction, the macronucleus dissolves and is replaced by what? Choices: - fluctuations - chromosomes - sporozoans - micronucleus A:
micronucleus
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Answer the following question given this paragraph: The mass number is the number of protons plus the number of neutrons in an atom. For example, most atoms of helium have 2 neutrons, so their mass number is 2 + 2 = 4. This mass number means that an atom of helium has a mass of about 4 amu. Q: What makes up the mass number of an atom? Choices: - electrons and neutrons - atoms and neutrons - molecules and electrons - protons and neutrons A:
protons and neutrons
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Answer the following question given this paragraph: A volcano is a vent through which molten rock and gas escape from a magma chamber. Volcanoes differ in many features, such as height, shape, and slope steepness. Some volcanoes are tall cones, and others are just cracks in the ground ( Figure below ). As you might expect, the shape of a volcano is related to the composition of its magma. The three types of volcanoes are composite, shield, and cinder cones. Q: What are the 3 types of volcanoes? Choices: - composite , atop , cinder cones - composite, seismic, fault - crude , shield , cinder cones - composite, shield, cinder cones A:
composite, shield, cinder cones
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