Answer the following question given this paragraph: The umbra is the part of the shadow in which light is completely blocked. Q: The part of the shadow in which light is completely blocked is called what? Choices: - penumbra - eclipse - corona - umbra A:
umbra
(Question)
Answer the following question given this paragraph: The bacterium in Figure above is a prokaryote. Prokaryotes are microscopic organisms that have neither a membrane-bound nucleus nor membrane-bound organelles. Some cell biologists consider the term "organelle" to describe membrane-bound structures only, whereas other cell biologists define organelles as discrete structures that have a specialized function. Prokaryotes have ribosomes, which are not surrounded by a membrane but do have a specialized function, and could therefore be considered organelles. All metabolic functions carried out by a prokaryote take place in the plasma membrane or the cytosol. Q: All metabolic functions carried out by a prokaryote take place in the plasma membrane or where else? Choices: - extracellular - Shell - mitochondrial - cytosol A:
(Answer)
cytosol
Ques: Answer the following question given this paragraph: The type of radiation, which dictates how far it can penetrate into matter 2. The energy of the individual particles or photons 3. The number of particles or photons that strike a given area per unit time 4. The chemical nature of the substance exposed to the radiation The relative abilities of the various forms of ionizing radiation to penetrate biological tissues are illustrated inFigure 20.12 "Depth of Penetration of Ionizing Radiation". Because of its high charge and mass, radiation interacts strongly with matter. Consequently, it does not penetrate deeply into an object, and it can be stopped by a piece of paper, clothing, or skin. In contrast, rays, with no charge and essentially no mass, do not interact strongly with matter and penetrate deeply into most objects, including the human body. Several inches of lead or more than 12 inches of special concrete are needed to completely stop rays. Because particles are intermediate in mass and charge between particles and . Q: The type of what dictates how far it can penetrate into matter, such as lead or human flesh? Choices: - insulation - evaporation - specific gravity - radiation A:
Ans: radiation
(Q).
Answer the following question given this paragraph: Plants can respond to the change of season by losing their leaves, flowering, or breaking dormancy. Q: Plants can lose their leaves, flower, or break dormancy in response to a change in what? Choices: - events - periods - averages - seasons A:
(A).
seasons
Ques:Answer the following question given this paragraph: PV = nRT This equation is known as the ideal gas law. An ideal gas is defined as a hypothetical gaseous substance whose behavior is independent of attractive and repulsive forces and can be completely described by the ideal gas law. In reality, there is no such thing as an ideal gas, but an ideal gas is a useful conceptual model that allows us to understand how gases respond to changing conditions. As we shall see, under many conditions, most real gases exhibit behavior that closely approximates that of an ideal gas. The ideal gas law can therefore be used to predict the behavior of real gases under most conditions. As you will learn in Section 10.8 "The Behavior of Real Gases", the ideal gas law does not work well at very low temperatures or very high pressures, where deviations from ideal behavior are most commonly observed. Q: The important equation pv = nrt holds true for substances in what state of matter? Choices: - solids - liquids - products - gas A:

Ans:gas
Ques:Answer the following question given this paragraph: An electric transformer is a device that uses electromagnetic induction to change the voltage of electric current. Electromagnetic induction is the process of generating current with a magnetic field. It occurs when a magnetic field and electric conductor, such as a coil of wire, move relative to one another. A transformer may either increase or decrease voltage. You can see the basic components of an electric transformer in the Figure below . For an animation showing how a transformer works, go to this URL: http://www. youtube. com/watch?v=VucsoEhB0NA . Q: What type of device uses electromagnetic induction to change the voltage of electric current? Choices: - radioactive transformer - hot transformer - mechanical transformer - electronic transformer A:

Ans:
electronic transformer