Which Feature Characterizes Cells of the Inner Cell Mass in a Mammalian

question 78

Multiple Choice

Which feature characterizes cells of the inner cell mass in a mammalian embryo?

• A) Secrete fluid to form the blastocoel
• B) Adhere to the endometrium
• C) Eventually form the hypoblast and epiblast
• D) Secrete enzymes to aid in implantation
• E) Become distinct from the trophoblast at the eight-cell stage

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Definitions:

U-joint Operating Angle

The angle formed between the driveshaft and the components attached at either end, critical for efficient power transmission and minimizing vibrations.

Total Indicated Runout (TIR)

A measurement of the deviation of a mechanical part from its ideal shape, indicating the total variation from roundness or straightness.

Shaft Revolution

The number of rotations that a shaft completes in a given period of time, often measured in revolutions per minute (RPM).

Permissable Operating Angles

The maximum angles at which certain mechanical components, such as driveshafts, can operate without causing damage or undue wear.