The First 87% of Geologic Time Is Often Called

question 8

Multiple Choice

The first 87% of geologic time is often called

• A) Hadean time.
• B) Pangaean time.
• C) Precambrian time.
• D) Proterozoic time.

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Definitions:

Dizygotic

Referring to twins that are formed from two separate eggs fertilized by two different sperm cells, resulting in genetically distinct siblings.

Twins Produced

The result of a pregnancy that yields two offspring at the same birth, either identical or fraternal.

Double Helix

The structure formed by double-stranded molecules of nucleic acids, such as DNA, characterized by a spiral shape.

Down Syndrome

A genetic disorder caused by the presence of an extra chromosome 21, characterized by physical growth delays, characteristic facial features, and intellectual disability.