In Figure 16.1, how many mL is the inspiratory capacity?
A) 2200
B) 1300
C) 600
D) 2800
E) 1700
Answer: D) 2800
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A woman visits her doctor complaining of stomach pain and is diagnosed as having a stomach ulcer. If the doctor were to assess the microbial composition of the woman's stomach, what might he expect to find?
A. increased levels of Firmicutes B. increased levels of Bacteroidetes C. increased levels of Helicobacter pylori D. increased levels of Picrophilus torridus E. increased levels of thaumarchaeote archaeons
As described in section 46.1 and Fig. 46.6 of your book, natural populations are affected by both density-dependent and density-independent factors
In a population affected mainly by density-dependent factors, would you expect natural selection to favor an r-selected or Kselected life history? __________ What will be an ideal response?
Imagine that you have found a mutant oak plant that cannot produce fusiform initials. Which of the
following would be the most direct result of this mutation?
a. The plant would not be able to perform photosynthesis. b. The plant would not be able to make secondary xylem and phloem. c. The plant would not be able to make roots. d. The plant would not be able to transport sugar to the roots. e. The plant would not be able to make leaves.
A plant that has the mutant form of the WEREWOLF gene (wer) would be identifiable by
A. the lack of microscopic hairs along the epidermis of the root. B. the extra thick layer of mesophyll cells in the leaf. C. the abundance of microscopic hairs on the root. D. the excessive number of vascular bundles in stem. E. the lack of fibers in the outer portions of the stem.