Figure 36.6
Use the figure above to answer the following question.
?
The anatomical structure identified with the letter "R" in the figure above is the ____.
A. pericardium
B. cardiac muscle
C. inferior vena cava
D. right atrium
E. heart apex
Answer: B
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Gene silencing refers to:
A. repression of gene expression by the absence of activator proteins. B. repression of gene expression by the presence of repressor proteins. C. the absence of gene expression due to its location in the genome. D. All of the choices are correct.
Which layer of the stomach wall is modified into deep folds?
A) serosa B) mucosa C) submucosa D) muscularis
The gradient distributions of alleles across continents reflect _____
a. the delineation of new races b. genetic drift c. human migration patterns d. protective alleles e. natural selection
When solid sodium hydroxide is added to water, the solution gets hot. This is an example of a(n)
A) endergonic process. B) conversion of kinetic energy to potential energy. C) exergonic process. D) enzyme-catalyzed process. E) release of activation energy.