Answer the following question given this paragraph: Figure 20.2 The rate of flow of charge is current. An ampere is the flow of one coulomb through an area in one second. Q: The rate of flow of charge in an electrical circuit is known as what? Choices: - output - voltage - velocity - current A:
current
Answer the following question given this paragraph: How metalloids behave in chemical interactions with other elements depends mainly on the number of electrons in the outer energy level of their atoms. Metalloids have from three to six electrons in their outer energy level. Boron, pictured in the Figure below , is the only metalloid with just three electrons in its outer energy level. It tends to act like metals by giving up its electrons in chemical reactions. Metalloids with more than four electrons in their outer energy level (arsenic, antimony, and tellurium) tend to act like nonmetals by gaining electrons in chemical reactions. Those with exactly four electrons in their outer energy level (silicon and germanium) may act like either metals or nonmetals, depending on the other elements in the reaction. Q: How metalloids behave in chemical interactions with other elements depends mainly on the number of what, in the outer energy level of their atoms? Choices: - protons - positrons - neutrons - electrons A:
electrons
Q: Answer the following question given this paragraph: Sugars are simple carbohydrates. Molecules of sugars have relatively few carbon atoms. Glucose (C 6 H 12 O 6 ) is one of the smallest sugar molecules. Plants and some other organisms make glucose in the process of photosynthesis. Living things that cannot make glucose obtain it by consuming plants or these other organisms. Q: Glucose is an example of what simple carboyhydrates with relatively few carbon atoms? Choices: - solvents - mixtures - acids - sugars A:
A: sugars
Question: Answer the following question given this paragraph: Most metalloids have some physical properties of metals and some physical properties of nonmetals. They fall between metals and nonmetals in their ability to conduct heat and electricity. They are shiny like metals but brittle like nonmetals. All exist as solids at room temperature. Q: What is an example of a metaloid element? Choices: - argon - chlorine - fluorine - silicon A:
Answer: silicon
*Question*
Answer the following question given this paragraph: sphincter, but the esophagus remains closed when there is no swallowing action. Acid reflux or "heartburn" occurs when the acidic digestive juices escape into the esophagus. Stomach A large part of digestion occurs in the stomach, shown in Figure 34.11. The stomach is a saclike organ that secretes gastric digestive juices. The pH in the stomach is between 1.5 and 2.5. This highly acidic environment is required for the chemical breakdown of food and the extraction of nutrients. When empty, the stomach is a rather small organ; however, it can expand to up to 20 times its resting size when filled with food. This characteristic is particularly useful for animals that need to eat when food is available. Q: What is the cause of the "heartburn" that occurs when acidic digestive juices escape into the esophagus? Choices: - toxic reflux - acidic buildup - acid pressure - acid reflux A:
**Answer**
acid reflux
*Question*
Answer the following question given this paragraph: Mitosis in the Eukaryotic Cell Cycle. Mitosis is the multi-phase process in which the nucleus of a eukaryotic cell divides. Q: What is the multi-phase process in which the nucleus of a eukaryotic cell divides? Choices: - fission - Osmosis - cytokinesis - mitosis A:
**Answer**
mitosis