Refer to the accompanying figure. Which region of the skin insulates the body from outside temperature extremes?
a. 1
b. 10
c. 11
d. 14
e. 15
d
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Using sequence data, it has been shown that:
A. humans evolved from the Neanderthals. B. Homo sapiens arose gradually in many places. C. Homo sapiens arose separately from Homo erectus and Homo neanderthalensis, expanding out of Africa. D. Homo sapiens arose separately from Homo erectus and Homo neanderthalensis, expanding out of Asia. E. Homo sapiens evolved from Homo erectus.
Which of the following is not associated with adhesive junctions?
A) desmosomes B) hemidesmosomes C) plaques D) connexin E) cadherins
Which statement about viruses is FALSE?
a. Viruses are not cellular. b. Viruses can manufacture proteins. c. Viruses cannot carry on metabolic activities. d. Viruses can only replicate by infecting other cells. e. Viruses have a protective protein coat called a capsid.
Which of the following statements regarding virus taxonomy is true?
A) Viruses are classified on the basis of the taxonomy of their host organisms. B) Virus classes are well established. C) Some virus family names are derived from the name of an important member of the family. D) The species epithet is a Latin descriptor of the virion structure. E) Virus classes are based on the domain of the host organism.