List two shared derived characteristics of modern birds that separate them from other reptiles.
List two shared derived characteristics of modern birds that separate them from other reptiles.
Homework Answers
1.Birds lay eggs with hard shells. (eventhough both birds and reptiles have amniotic eggs)
2.In birds the fore limb devoloped into wings(pnematized in case of flying birds), and having feathers.
3.The single occipital condyle, which is at the base of the skull, joins the neck to the body and is present in reptiles as well. In case of birds, it allows them to rotate their necks as much as 270 degrees.
Also we can consider the four chambered heart in birds to provide more energy for their body temperature as well as flight.
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List two shared derived characteristics of modern birds that
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