Multiple choice Which of the following describe features of birds? Warm blooded, toothless beaked jaws, lay hard shelled eggs. Warm blooded, toothed beaked jaws, lay hard shelled eggs. Cold blooded, toothless beaked jaws, lay hard shelled eggs. Cold blooded, toothed beaked jaws, lay hard shelled eggs. Reveal answer Fill a bubble to check yourself A Correct answer Explanation Birds are warm-blooded vertebrates with feathers, toothless beaked jaws, and they lay hard-shelled eggs.