Answer the following question given this paragraph: Traits are controlled by genes on chromosomes. A gene may have different versions called alleles. Q: A gene may have different versions called what? Choices: - genomes - peptides - locus - alleles A:
alleles
(Question)
Answer the following question given this paragraph: Static friction acts on objects when they are resting on a surface. For example, if you are walking on a sidewalk, there is static friction between your shoes and the concrete each time you put down your foot (see Figure below ). Without this static friction, your feet would slip out from under you, making it difficult to walk. Static friction also allows you to sit in a chair without sliding to the floor. Can you think of other examples of static friction?. Q: When you are walking on a sidewalk, what occurs between your shoes and the concrete each time you put down your foot? Choices: - movement - progress - grip - static friction A:
(Answer)
static friction
Ques: Answer the following question given this paragraph: Consider petroleum as an example. Oil companies explore for petroleum in areas where they think it might be. When they find it, they must determine how much is there. They must also know how hard it will be to get. If there's enough to make it worthwhile, they will decide to go for it. To extract petroleum, companies they must build huge rigs, like the one in Figure below . An oil rig drills deep into the ground and pumps the oil to the surface. The oil is then transported to a refinery. At the refinery, the oil is heated. It will then separate into different products, such as gasoline and motor oil. Finally, the oil products are transported to gas stations, stores, and industries. At every step, energy is used. For every five barrels of oil we use, it takes at least one barrel to get the oil. Q: What is used during every step of oil production, from exploration to distribution? Choices: - coal - robots - water - energy A:
Ans: energy
(Q).
Answer the following question given this paragraph: Q: What cellular structure is used during endocytosis to allow molecules to enter the cell? Choices: - nucleus - tissues - membranes - vesicles A:
(A).
vesicles
Ques:Answer the following question given this paragraph: In the Figure below , you can see structural formulas for glucose and two other sugars, named fructose and sucrose. Fructose is a sugar that is found in fruits. It is an isomer of glucose. Isomers are compounds that have the same atoms but different arrangements of atoms. Do you see how the atoms are arranged differently in fructose than in glucose? You're probably most familiar with the sugar sucrose, because sucrose is table sugar. It's the sugar that you spoon onto your cereal or into your iced tea. Q: What is a sugar that is found in fruits? Choices: - ethanol - glucose - sucrose - fructose A:

Ans:fructose
Answer the following question given this paragraph: acid will form a homogeneous solution with water. (In fact, the solubility of both butanol and pentanoic acid in water is quite low, only about 3 g per 100 g water at 25C. ) 10. An electrolyte is any compound that can form ions when it dissolves in water. When a strong electrolyte dissolves in water, it dissociates completely to give the constituent ions. In contrast, when a weak electrolyte dissolves in water, it produces relatively few ions in solution. Q: What is a compound that can form ions when it dissolves in water called? Choices: - sulfate - compound - isolate - electrolyte A:
electrolyte