The Branching "Tree of Life" Analogy

question 73

Multiple Choice

The branching "tree of life" analogy

• A) accurately reflects evolution because once a split occurs, species on different branches evolve independently.
• B) has been discredited because it does not help us understand evolutionary relationships among organisms.
• C) fails to account for horizontal gene transfer, in which species on different branches exchange genes.

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Definitions:

Mobilizing

The act of preparing and organizing resources or people for action or use.

Peripheral Nervous System

The part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord, involved in connecting the CNS to limbs and organs.

Neurons

Cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Parasympathetic Nervous System

A division of the autonomic nervous system responsible for conserving energy and slowing down the body's responses.