All Species on Earth Today Are Descended from a Cell

question 10

Multiple Choice

All species on Earth today are descended from a cell that lived as early as ____ years ago.

• A)570 million
• B)1.4 billion
• C)4 billion
• D)more than 5 billion
• E)more than 10 billion

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Definitions:

Ping

A network utility command used to test the reachability of a host on an Internet Protocol (IP) network.

Piece of Metal

A fragment or section of metal, which can vary in size, shape, and type, depending on its intended use or origin.

Damaged Tooth

A damaged tooth refers to a tooth that has been broken, chipped, cracked, or otherwise harmed, often requiring dental treatment to repair or protect it.

Painful Injury

An injury that causes significant physical discomfort or suffering.