Birds have many characteristics, but all birds share four specific traits. Four chambered heart, hollow bones, diapsid skull, reversed toes, and a fused collarbone are traits that all birds share.
Birds.
Birds are warm-blooded.
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There are four main classes of animals: Mammals (Mammalia), Birds (Aves), Reptiles (Reptilia), and Fish (Chondrichthyes, Agnatha, Placodermi, Actinopterygii, Sarcopterygii).
they are birds
birds
Birds have four chamber heart!
All humans have four chambers in their heart.
Yes airplane have the characteristics of life. The have wings like birds.
Reptiles and birds share enough common characteristics to be classified in the same clade called Sauropsida, which includes all modern reptiles and birds.
Yes. Birds have four-chambered hearts.
Animals that have the four basic characteristics of chordates (dorsal hollow nerve cord, notochord, post-anal tail, pharyngeal slits) plus a vertebral column are known as vertebrates. Examples include mammals, birds, reptiles, amphibians, and fish.