Phylogenetic Trees Constructed from Evidence from Molecular Systematics Are Based

question 44

Multiple Choice

Phylogenetic trees constructed from evidence from molecular systematics are based on similarities in ________.

• A) morphology
• B) the pattern of embryological development
• C) biochemical pathways
• D) mutations to homologous genes

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Definitions:

Eustachian Tube

A narrow tube that connects the middle ear to the throat, helping to maintain equal air pressure on both sides of the eardrum.

Otitis Media

An infection or inflammation of the middle ear, often resulting in ear pain, fever, and hearing problems.

Muffled Speech

Speech that is difficult to understand due to distortion or low volume, often a symptom of a medical condition or obstruction.

Cholesteatoma

An abnormal, noncancerous skin growth that can develop in the middle section of the ear, behind the eardrum, often leading to hearing loss.