If You Were Using Cladistics to Build a Phylogenetic Tree

question 67

Multiple Choice

If you were using cladistics to build a phylogenetic tree of cats, which of the following would be the best outgroup?

• A) lion
• B) domestic cat
• C) wolf
• D) leopard
• E) tiger

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Definitions:

Nasopharynx

The upper part of the pharynx, connecting the nasal cavity above the soft palate to the oropharynx.

Auditory Tube

Also known as the Eustachian tube, it connects the middle ear to the back of the nasopharynx, helping equalize air pressure on both sides of the eardrum.

Tympanic Cavity

An air-filled space in the temporal bone of the skull behind the eardrum that contains the bones of the middle ear.

External Acoustic Meatus

The ear canal leading from the outer ear to the eardrum.