Eukaryotes Arose About ________ Years After the First Prokaryotes

question 55

Multiple Choice

Eukaryotes arose about ________ years after the first prokaryotes.

• A)3)0 million
• B)1)7 billion
• C)3)5 billion
• D)4)0 billion

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Definitions:

Bredt's Rule

A principle stating that bridged bicyclic compounds cannot have a double bond at a bridgehead position unless one of the rings contains at least eight carbon atoms, due to stability issues.

Stable Diene

A type of organic compound with two double bonds that exhibits stability in its structure and reactivity.

Cycloalkenes

Unsaturated hydrocarbons containing one or more carbon-carbon double bonds within a cyclic structure.

Unstable

A state of a chemical compound where it has the potential to change or react under certain conditions, often leading to a more energetically favorable state.