Hair Is a Character Shared by All Mammals,but Not Found

question 2

Multiple Choice

Hair is a character shared by all mammals,but not found in their ancestral lineage.Hair is therefore considered to be a(n)

• A)clade.
• B)shared ancestral character (trait).
• C)shared derived character (trait).
• D)analogous structure.

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Definitions:

Reservoir Host

An organism that harbors a pathogen for an extended period, without suffering from disease caused by the pathogen, and serves as a source of infection.

Airborne Transmission

A mode of infectious disease transmission through the air, involving the spread of droplets or particles carrying infectious agents.

Tuberculosis

A contagious infection caused by the bacterium Mycobacterium tuberculosis, primarily affecting the lungs but can spread to other organs, characterized by cough, fever, and weight loss.

Respiratory Diseases

A category of diseases that impact the lungs and other parts of the respiratory system, causing difficulties in breathing.