Consider Two Isolates a and B: Microbe 'A' Had a LD₅₀

question 62

Multiple Choice

Consider two isolates A and B: microbe 'A' had a LD₅₀ of 5 × 10⁴ while microbe 'B' recorded a LD₅₀ of 5 × 10⁷. Which isolate is more virulent?

• A) cannot tell with information provided
• B) microbe A
• C) microbe B
• D) equally virulent since they killed the animals
• E) the values indicate that neither one is virulent

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Definitions:

Power Steering

A system that uses hydraulic or electric assistance to reduce the effort needed to steer a vehicle.

Manual Transmission

A type of vehicle transmission that requires the driver to manually shift gears while driving.

Main Effects

The direct impact of an independent variable on a dependent variable in an experimental design, ignoring the effects of other variables.

Interactions

The reciprocal actions or influences between entities, such as between individuals, groups, or systems.