The Primary,but Not Only,process Responsible for the Modifications That Occur

question 39

Multiple Choice

The primary,but not only,process responsible for the modifications that occur in organisms over geological time is

• A)genetic mutation.
• B)natural selection.
• C)morphological (phenotypic) modification.
• D)increase in fitness.

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Definitions:

Antibonding π Molecular Orbital

A molecular orbital formed when lobes of p orbitals on two atoms combine in a phase mismatch, weakening the bond between the atoms.

Allyl Cation

A positively charged species (ion), specifically a reactive intermediate with the structure CH2=CH-CH2+.

LUMO

The Lowest Unoccupied Molecular Orbital, which is the lowest energy orbital that can accept electrons.

Pentadienyl Cation

A positively charged ion with a structure derived from pentadiene, typically involved in organic reactions.