The Molecular Clock Is Based on the Assumption That

question 51

Multiple Choice

The molecular clock is based on the assumption that

• A) living organisms have equal amounts of carbon and carbon-14 in their tissues.
• B) genetic mutations accumulate at a constant rate.
• C) the products of uranium decay tend to solidify, separate out of water, and mix with salts that collect on the bottom of a lake or sea.
• D) heating an irradiated substance releases trapped electrons together with a quantity of light directly in proportion to their number.

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Definitions:

Over-heating

The condition of a machine or system running beyond its normal temperature range, which can lead to failure or damage.

Axial TIR

Tolerance of radial run-out in a rotating component, measured along the axis.

Hydraulic Brake Rotor

A critical component in hydraulic braking systems, the rotor is a disc that brake pads press against to create friction and slow down the vehicle.