What Is True of the Cambrian Explosion

question 39

Multiple Choice

What is true of the Cambrian explosion?

• A) There are no fossils in geological strata that are older than the Cambrian explosion.
• B) Only the fossils of microorganisms are found in geological strata older than the Cambrian explosion.
• C) The Cambrian explosion is evidence for the instantaneous creation of life on Earth.
• D) The Cambrian explosion marks the appearance of filter-feeding animals in the fossil record.
• E) Recent evidence supports the contention that the Cambrian explosion may not have been as "explosive" as was once thought.

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Definitions:

Routine Request

A standard or regular appeal for information, services, or action within personal or professional contexts.

Generic Closing

A standard or common way to conclude a letter or message that is not specific to any particular situation.

Procedural Message

Communique that provides instructions or guidelines on how to perform tasks or processes.

Passive Voice

A grammatical voice where the subject of the sentence is acted upon by the verb, often obfuscating who is performing the action.