One Way of Establishing Whether a Character of an Extant

question 13

Multiple Choice

One way of establishing whether a character of an extant species is ancestral or derived is to locate a/an ______ and if the character occurs in both,it is likely ________.

• A)fossil,ancestral
• B)fossil,derived
• C)sister species,derived
• D)outgroup,ancestral

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Definitions:

Gum Line

The boundary area where the gums meet the teeth, important in dental health for identifying issues like gum disease or recession.

Repositioning Tube

A procedure or device designed to adjust the placement of medical tubing within the body to ensure proper function and comfort.

Epiglottis

A flap of cartilage located at the entrance of the larynx, preventing food and drink from entering the windpipe during swallowing.

Vocal Cords

Bands of tissue in the larynx that vibrate to produce sound, essential for speech and singing.