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the air sacs within the lungs that allow the exchange of oxygen and carbon dioxide between the blood and the air. enzyme. any of the molecules designed to make chemical reactions occur very rapidly. peristalsis. involuntary contraction of muscles in the esophagus that pushes food toward the stomach. epiglottis.
the tough, clear, outer covering of hair composed of overlapping scales. shaft. composed of the cuticle, cortex, and medulla. paper bindle. package used to hold hair evidence. Study with Quizlet and memorize flashcards containing terms like keratin, bleaching, secondary transfer and more.
Quiz yourself with questions and answers for Science Test #3 review, so you can be ready for test day. Explore quizzes and practice tests created by teachers and students or create one from your course material.
Terms in this set (8) Study with Quizlet and memorize flashcards containing terms like oxygen, vertebrate, mammal and more.
Study with Quizlet and memorize flashcards containing terms like Which state of matter has a definite volume but a variable shape?, In which state(s) of matter can materials take the shape of their containers?, Which statement is true about the atoms in helium gas? and more.
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