Of the over 19,000 new species described for the first time in 2009, more than half were
A) marine organisms.
B) plants.
C) insects.
D) vertebrates.
Answer: C
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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?
If a deer herd has a population of N = 1,000, and a per capita rate of increase of 10% (r = 0.1 per year), how much will the deer population grow in a year, if resources are unlimited?
A. 500 B. 50 C. 100 D. 1,000 E. 10
Males tend to be affected in greater numbers by Xlinked
recessive genetic disorders than are females because a. females have two dominant genes for the disorder. b. males have only one X chromosome. c. males have a double dose of the gene. d. Y chromosomes are not as strong as X chromosomes. e. none of these.
Fossils from the Paleozoic are plentiful because
A. this is the time period most studied. B. multicellular organisms first evolved during this time. C. hard body parts evolved in plants and animals. D. mammals greatly diversified during this time.