Examine the Evolutionary Tree Pictured Below

question 97

Multiple Choice

Examine the evolutionary tree pictured below.
In this evolutionary tree, which number represents the most recent common ancestor of A, B, and C?

• A)1
• B)2
• C)3

---

Definitions:

Cyclohexane Conformations

The various spatial arrangements that the cyclohexane molecule can adopt due to rotation around its C-C bonds, affecting its stability and reactivity.

Energy

The capacity to do work, present in many forms such as kinetic, potential, thermal, chemical, and electrical.

Cis-1-Ethyl-4-Isopropylcyclohexane

A cyclohexane molecule with ethyl and isopropyl groups attached in a cis configuration, meaning on the same side of the molecule.

Stable Conformation

Refers to the most energetically favorable spatial arrangement of atoms in a molecule, minimizing strain and repulsion.