Why, According to the Text, Are Scientists Pessimistic About Extending

question 135

Multiple Choice

Why, according to the text, are scientists pessimistic about extending the human maximum lifespan?

• A) Aging has complex causes, so a single antiaging intervention won't work.
• B) People love to eat more than they should.
• C) People will always die of accidents.
• D) People will always die of infectious diseases.

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Definitions:

Shear Loading

A condition where a material or structure is subjected to forces that cause sliding failure along a parallel plane to the forces applied.

Taper Pin

A pin that has a gradual decrease in diameter from one end to the other, used to locate or hold parts together.

Straight Pin

A fastener or guide that is long in relation to its diameter, utilized in various mechanical or construction applications.

Hole Alignment

The accuracy with which holes are positioned in relation to each other or to specified datums.