imbs of primates and bats have similar skeletal structures bu

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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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4
The forelimbs of primates and bats have similar skeletal structures but the
corresponding bones in whales have different shapes and proportions. A
variety of data suggest that these three kinds of mammals diverged from a
common ancestor at about the same time. Which is the most likely
explanation:
a. Forelimb evolution is adaptive in primates and bats, but under neutral
selection in whales
b. Forelimbs in these three mammals are analogous
c. Natural selection imposed by aquatic environments favoured changes
in whale forelimb anatomy
d. Whales are incorrectly classified as mammals
e.
Genes mutate faster in whales compared to bats and primates
Transcribed Image Text:The forelimbs of primates and bats have similar skeletal structures but the corresponding bones in whales have different shapes and proportions. A variety of data suggest that these three kinds of mammals diverged from a common ancestor at about the same time. Which is the most likely explanation: a. Forelimb evolution is adaptive in primates and bats, but under neutral selection in whales b. Forelimbs in these three mammals are analogous c. Natural selection imposed by aquatic environments favoured changes in whale forelimb anatomy d. Whales are incorrectly classified as mammals e. Genes mutate faster in whales compared to bats and primates
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