1. What links all of the xenarthrans together as a monophyletic group? reduced a
ID: 147915 • Letter: 1
Question
1.
What links all of the xenarthrans together as a monophyletic group?
reduced articulations of the vertebrae
xenarthran articulations of the vertebrae
edentate skulls
tribosphenic teeth
2.
____________________________ are distinguishing features of the Cingulata.
Bony scutes
Large incisors
Reduced lingual supports
Symbioses with algae
3.
In examining the skull of the anteaters (Vermilingua), what does the reduction of the zygomatic arch tell you?
expansion of jaw musculature
reduction in tongue musculature
reduction in jaw musculature
expansion of eye musculature
a.reduced articulations of the vertebrae
b.xenarthran articulations of the vertebrae
c.edentate skulls
d.tribosphenic teeth
Explanation / Answer
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