In Earth's History,there Has/have Been ____ Major Extinction Event(s)leading to the Loss

question 12

Multiple Choice

In Earth's history,there has/have been ____ major extinction event(s) leading to the loss of 50% or more of the species present.

• A)one
• B)three
• C)five
• D)seven
• E)nine

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Definitions:

Inoculation

The introduction of a vaccine into the body to produce immunity to a specific disease.

Call-and-Response

A musical structure where a leader sings or plays a phrase and a group responds with a repeating phrase or answer.

Imported Directly

Refers to goods or services brought into a country from another country or region without passing through an intermediary or third party.

Manumission

The act of a slave owner freeing their slaves, particularly in historical contexts prior to the abolition of slavery.