Answer the following question given this paragraph: The standard cell potential is negative, indicating a nonspontaneous reaction. The battery must be capable of delivering at least 1.10 V of direct current in order for the reaction to occur. Another difference between a voltaic cell and an electrolytic cell is the signs of the electrodes. In a voltaic cell, the anode is negative and the cathode is positive. In an electrolytic cell, the anode is positive because it is connected to the positive terminal of the battery. The cathode is therefore negative. Electrons still flow through the cell form the anode to the cathode. Q: What type of cell has negative anode is positive cathode? Choices: - picric cell - planetoid cell - non-voltaic cell - voltaic cell A:
voltaic cell
(Question)
Answer the following question given this paragraph: Figure 5.3 This phospholipid molecule is composed of a hydrophilic head and two hydrophobic tails. The hydrophilic head group consists of a phosphate-containing group attached to a glycerol molecule. The hydrophobic tails, each containing either a saturated or an unsaturated fatty acid, are long hydrocarbon chains. Q: What two things are a phospholipid molecules composed of? Choices: - hydrophillic head , and adhesion tails - hydrophillic head , and substrate tails - hemophillic head, and substrate tails - hydrophillic head , and hydrophobic tails A:
(Answer)
hydrophillic head , and hydrophobic tails
Ques: Answer the following question given this paragraph: When physical or chemical changes occur, they are generally accompanied by a transfer of energy. The law of conservation of energy states that in any physical or chemical process, energy is neither created nor destroyed. In other words, the entire energy in the universe is conserved. In order to better understand the energy changes taking place during a reaction, we need to define two parts of the universe, called the system and the surroundings. The system is the specific portion of matter in a given space that is being studied during an experiment or an observation. The surroundings is everything in the universe that is not part of the system. In practical terms for a laboratory chemist, the system is the particular chemicals being reacted, while the surroundings is the immediate vicinity within the room. During most processes, energy is exchanged between the system and the surroundings. If the system loses a certain amount of energy, that same amount of energy is gained by the surroundings. If the system gains a certain amount of energy, that energy is supplied by the surroundings. Q: Physical or chemical changes are generally accompanied by a transfer of what? Choices: - shape - pressure - color - energy A:
Ans: energy
(Q).
Answer the following question given this paragraph: At what population size does growth start to slow in the logistic model of growth? That depends on the population's carrying capacity (see Figure above ). The carrying capacity (K) is the largest population size that can be supported in an area without harming the environment. Population growth hits a ceiling at that size in the logistic growth model. Q: The largest population size that can be supported in an area without harming the environment is referred to as what? Choices: - population shift - containing capacity - population density - carrying capacity A:
(A).
carrying capacity
Ques:Answer the following question given this paragraph: The weather map pictured below ( Figure above ) shows air pressure. The lines on the map connect places that have the same air pressure. Air pressure is measured in a unit called the millibar. Isobars are the lines that connect the points with the same air pressure. The map also shows low- and high-pressure centers and fronts. Find the cold front on the map. This cold front is likely to move toward the northeast over the next couple of days. How could you use this information to predict what the weather will be on the East Coast?. Q: What is the unit used to measure air pressure? Choices: - pounds per inch - newtons - mass - millibar A:

Ans:millibar
Ques:Answer the following question given this paragraph: Lightning occurs when there is a sudden discharge of static electricity between a cloud and the ground. Q: What occurs when there is a sudden discharge of static electricity between a cloud and the ground? Choices: - updraft - wind - rain - lightning A:

Ans:
lightning