A sufficient condition for being a bird is:
A)being a vertebrate.
B)laying eggs.
C)having feathers.
D)building a nest.

Name: A sufficient condition for being a bird is: A)being a vertebrate. B)laying eggs. C)having feathers. D)building a nest.
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Question

Quizplus · Accepted Answer

Having feathers is a unique characteristic to birds that distinguishes them from other vertebrates. While other options listed may apply to some birds, they are not essential criteria for being a bird.

A Sufficient Condition for Being a Bird Is