Which of the following is not a property of water that results from hydrogen bonding?
A) The temperature of water changes very slowly.
B) Many polar substances dissolve in water.
C) Water molecules have cohesiveness.
D) Ice melts at -100°C.
E) Water has a high surface tension.
Ans: D) Ice melts at -100°C.
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In seed plants, the transfer of male gametophytes to female reproductive parts is a process called ____
a. meiosis b. pollination c. fertilization d. syngamy e. sporulation
Jim is suffering from congestive heart failure, in which blood flow is backed up in his lungs and excess fluid is escaping the blood and accumulating in his lung tissue. If untreated, increasing pulmonary edema will lead to death by suffocation. What is the most-likely cause of Jim’s congestive heart failure?
A. Contraction of his right atrium is not keeping up with contraction of his left atrium. B. Contraction of his left ventricle is not keeping up with contraction of his right ventricle. C. Jim’s pulmonary semilunar valve is not opening properly. D. Jim’s SA node is malfunctioning. E. Jim’s right atrioventricular valve (tricuspid valve) is not closing properly. Gather Content What do you already know about the path of blood between the heart and the lungs? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Oligosaccharides include ____
a. sucrose only b. glucose only c. fructose only d. lactose only e. both sucrose and lactose
Which of the following features is characteristic of all
life? a. organization of molecules into cells b. metabolic control using enzymes c. a continuous flow of sustaining energy d. DNA with its hereditary code e. all of these