The Scientist Who Developed a System of Identifying the Variety

question 3

Multiple Choice

The scientist who developed a system of identifying the variety of strains of streptococci was

• A)Hans Zimmer.
• B)Donald Sutherland.
• C)O.T.Avery.
• D)Rebecca Lancefield.

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Definitions:

Differential Carrier

The housing that contains the differential assembly, facilitating the variation in wheel speed on a vehicle.

Differential Carrier

the housing that contains the differential gear set in a vehicle, allowing for the difference in wheel speed between the driving wheels.

GL-5

A classification of gear lubricants, indicating the oil is suitable for high-pressure conditions and hypoid gears, common in automotive differentials.

TranSynd

A synthetic heavy-duty automatic transmission oil recommended by Allison, which states that it extends oil change intervals by 300 percent.