Can the atomic mass of an element vary?
A) No, it is fixed. If it changes at all then you have formed a different element.
B) Yes. Adding or losing electrons will substantially change the atomic mass.
C) Yes. Adding or losing protons will change the atomic mass without forming a different element.
D) Yes. Adding or losing neutrons will change the atomic mass without forming a different element.
D
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What is the order of structures or spaces that a surgeon will pass through to operate on a human lung?
A. skin -> intercostal muscles -> parietal pleural membrane -> pleural cavity -> visceral pleural membrane -> lung tissue B. skin -> pleural cavity -> intercostal muscles -> visceral pleural membrane -> parietal pleural membrane -> lung tissue C. skin -> visceral pleural membrane -> intercostal muscles -> pleural cavity -> parietal pleural membrane -> lung tissue D. skin -> intercostal muscles -> visceral pleural membrane -> pleural cavity -> parietal pleural membrane -> lung tissue E. skin -> intercostal muscles -> pleural cavity -> parietal pleural membrane -> visceral pleural membrane -> lung tissue Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about 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?
A human cell containing 22 autosomes and a Y chromosome is
A) a somatic cell of a male. B) a zygote. C) a somatic cell of a female. D) a sperm cell. E) an ovum
Bioremediation is the use of microbes
a) to clean up pollutants and toxic wastes. b) in recycling vital elements. c) to treat sewage. d) in food production.
The highest concentrations of medications are achieved by the (IM/IV/focal) route.
Fill in the blank(s) with the appropriate word(s).