The Cambrian Explosion Started _______ the Cambrian and Lasted for _______

question 94

Multiple Choice

The Cambrian explosion started _______ the Cambrian and lasted for _______ of years.

• A) before; tens of thousands
• B) before; millions
• C) during; hundreds
• D) during; tens of thousands
• E) during; millions

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Definitions:

Mass/Charge

The ratio of an ion's mass to its charge, often used in mass spectrometry for ion identification.

X-axis

The horizontal axis in a graph or chart, typically used to represent the independent variable in data sets.

Relative Abundance

The proportion of a particular isotope or element present in a mixture or collection, frequently expressed as a percentage of total abundance.

IR Spectroscopy

A technique used in analytical chemistry to identify and study chemicals through the interaction of infrared radiation with molecular vibrations.