turtles, lizards, snakes crocodiles dinosaurs parental care keratinized skin amniote egg bipedalsm hair birds avian endothermy asymmetrical leathers endothermy mammary glands mammals 1. a. Which character evolved first: the amniote egg or hair? b. Which character evolved first: keratinized skin or bipedalism? c. On the cladogram, circle the node that represents the most recent common ancestor of dinosaurs and birds

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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From the given cladogram, answer the following:

turtles,
lizards,
snakes crocodiles dinosaurs
parental
care
keratinized skin
amniote egg
bipedalsm
hair
birds
avian endothermy
asymmetrical
leathers
endothermy
mammary glands
mammals
1.
a. Which character evolved first: the amniote egg or hair?
b. Which character evolved first: keratinized skin or bipedalism?
c. On the cladogram, circle the node that represents the most recent common
ancestor of dinosaurs and birds
Transcribed Image Text:turtles, lizards, snakes crocodiles dinosaurs parental care keratinized skin amniote egg bipedalsm hair birds avian endothermy asymmetrical leathers endothermy mammary glands mammals 1. a. Which character evolved first: the amniote egg or hair? b. Which character evolved first: keratinized skin or bipedalism? c. On the cladogram, circle the node that represents the most recent common ancestor of dinosaurs and birds
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