Which of the following statements about "flesh-eating" streptococci is FALSE?
A) It is caused by a group A streptococcus.
B) It is also known as necrotizing fasciitis because it travels along the fascia.
C) It causes death in over 50% of cases.
D) It is considered a common complication of pyoderma.
E) It involves toxemia.
D
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Arrange the following electron carriers in the electron transport chain, based on their standard reduction potentials.Cytochroms a3(Fe3+) + e- ? Cytochrome a3 (Fe2+) Eo (volts) = 0.35Ubiquinone + 2H+ + 2e- ? Ubiquinone H2 Eo (volts) = 0.10Cytochrome a (Fe3+) + e- ? Cytochrome a (Fe2+) Eo (volts) = 0.29Cytochrome c (Fe3+) + e- ? Cytochrome c (Fe2+) Eo (volts) = 0.25
A. ubiquinone - cytochrome a - cytochrome a3 - cytochrome c B. cytochrome a3 - cytochrome a - cytochrome c - ubiquinone C. ubiquinone - cytochrome c- cytochrome a- cytochrome a3 D. cytochrome c - ubiquinone - cytochrome a - cytochrome a3
Protocol for testing susceptibility test systems include testing _____ consecutive days
a. daily for 7 b. bi-weekly for 30 c. every other day for 14 d. with use for 20
Why must an animal such as an amphibian remain moist?
What will be an ideal response?
Select the incorrect statement related to sarcomere structure and function.
A. Sarcomeres are the smallest subunits of muscle contraction. B. Stacks of thick filaments produce dark bands, called the A band. C. Two Z lines form the opposite borders of one sarcomere. D. Thin filaments are not present in the H band of a sarcomere. E. I bands consist of both thin and thick filaments.