The lowest temperature needed to kill or inactivate all microbes in 10 minutes is the
A. thermal death time (TDT).
B. death phase point.
C. thermal death point (TDP).
D. sporicidal time.
Answer: C
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Which of the following reactions prevails in red blood cells traveling through alveolar capillaries? (Hb = hemoglobin)
A) Hb + 4 O2 ? Hb(O2)4 B) Hb(O2)4 ? Hb + 4 O2 C) CO2 + H2O ? H2CO3 D) H2CO3 ? H+ + HCO3- E) Hb + 4 CO2 ? Hb(CO2)4
__________ line human nasal passages. Fill in the blank(s) with the appropriate word(s)
List the four elements that account for over 90% of the mass of living organisms and identify an important biological
function of each element. What will be an ideal response?
In double fertilization, one sperm fuses with the egg, and the other sperm fuses with the two antipodal nuclei. Indicate whether the statement is true or false