An atom with three electrons _______________________
A. has one orbital with three electrons
B. has two orbitals, one of which has two electrons, the other has one
C. has three orbitals, each of which contains one electron
D. has three energy shells, each of which contains one electron
Answer B
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Humans acquire the arbovirus that causes epidemic encephalitis by
A. the fecal-oral route. B. human to human contact. C. contaminated food. D. the bite of an infected mosquito
Figure 38.15
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Use the figure above to answer the following question.
What is the partial pressure of oxygen at the start of the systemic capillary beds?
A. 40 mm Hg B. 100 mm Hg C. 70 mm Hg D. 104 mm Hg E. 130 mm Hg
Which of the following is NOT used for the classification of viruses?
A) genus B) class C) specific epithet D) family E) order
Sweat can cause damage to bacteria because it contains salt and lysozyme
Indicate whether the statement is true or false