Persons with heartburn may have problems with their
a. pyloric sphincter.
b. bursa of Fabricius.
c. cardiac sphincter.
d. Peyer's patches.
e. choane.
C
Biology & Microbiology
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Natural catastrophes are considered the result of ____________
Fill in the blank(s) with the appropriate word(s).
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Transposable elements make up about 75% of the DNA in the human genome
A. true B. false
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Which of the following is a deforested area
more likely to experience? a. nutrient poor soils. b. soil loss. c. loss of species diversity. d. warmer temperatures. e. all of these.
Biology & Microbiology
Which of the photographs in the above figure
represents the seedless vascular plants? a. moss b. fern c. conifer d. monocot e. all of these
Biology & Microbiology