Regarding the evolution of the mammalian inner ear, the above diagram shows: A) the co-option of jaw bones (colored) for use in hearing B) the loss of jaw bones (colored) and the origin of de-novo hearing bones C) the evolution of synapsids, which have little to do with mammalian evolution D) the results of a population bottleneck which led to the fixation of odd alleles for ear development

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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 Regarding the evolution of the mammalian inner ear, the above diagram shows:
A) the co-option of jaw bones (colored) for use in hearing
B) the loss of jaw bones (colored) and the origin of de-novo hearing bones
C) the evolution of synapsids, which have little to do with mammalian evolution
D) the results of a population bottleneck which led to the fixation of odd alleles for ear
development

(A) PATTERN OF EVOLUTION
squamosal
squamosal
guadrate.
stapes
shown
magnified
shown
magnified
incus, evolved from quadrate
malleus, evolved from articular
stapes
articular
angular.
angular
dentary
dentary
EARLY SYNAPSID
ADVANCED SYNAPSID
Time
1. Regarding the evolution of the mammalian inner ear, the above diagram shows:
A) the co-option of jaw bones (colored) for use in hearing
B) the loss of jaw bones (colored) and the origin of de-novo hearing bones
C) the evolution of synapsids, which have little to do with mammalian evolution
D) the results of a population bottleneck which led to the fixation of odd alleles for ear
development
Transcribed Image Text:(A) PATTERN OF EVOLUTION squamosal squamosal guadrate. stapes shown magnified shown magnified incus, evolved from quadrate malleus, evolved from articular stapes articular angular. angular dentary dentary EARLY SYNAPSID ADVANCED SYNAPSID Time 1. Regarding the evolution of the mammalian inner ear, the above diagram shows: A) the co-option of jaw bones (colored) for use in hearing B) the loss of jaw bones (colored) and the origin of de-novo hearing bones C) the evolution of synapsids, which have little to do with mammalian evolution D) the results of a population bottleneck which led to the fixation of odd alleles for ear development
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