It is the measure of a microbe's ability to cause disease. It is defined as the sum of different factors which helps the microbe to overcome the host's defense systems this is known as:
A. Opportunistic pathogens
B. Virulence
C. Asymptomatic
D. Pathogens
Ans: B. Virulence
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Which step in producing ATP is correctly paired with the location where it occurs?
A) Krebs cycle—mitochondrial matrix B) formation of an electrochemical gradient—cytoplasm C) glucose is broken down to produce pyruvate—space between inner and outer mitochondrial membranes D) electron transport chain—outer mitochondrial membrane E) breakdown of pyruvate to form NADH and FADH2—cytoplasm
The term that refers to the accumulation of toxins in a food chain is ____
a. biological amplification b. toxin accumulation c. biological magnification d. chemical amplification e. chemical magnification
One change that occurs within a sarcomere during muscle contraction is that the
A) thin filaments get thicker. B) thick filaments move closer together. C) Z lines move closer together. D) thick filaments get thicker.
The distinguishing characteristic used to classify the algae into four kingdoms is
A) whether they are single celled or multicellular. B) their cell wall components. C) their storage products. D) their habitat. E) presence or absence of chlorophyll a.