12.14: Reptile Structure and Function Difficulty Level: At Grade Created by: CK-12 % Progress MEMORY METER This indicates how strong in your memory this concept is Practice Progress % % Practice Now MEMORY METER This indicates how strong in your memory this concept is Share Add to Library Turn In Read Practice Resources Details Loading... Notes/Highlights Having trouble? Report an issue. Color Highlighted Text Notes Show More Vocabulary Language: English ▼ English Spanish TermDefinition diaphragm Large, sheet-like muscle below the lungs; allows breathing to occur when it contracts and relaxes. ectotherm Animal with an internal body temperature that is dependent on the temperature of the environment. keratin Tough, fibrous protein in skin, nails, and hair. reptile Ectothermic, tetrapod vertebrate that lays amniotic eggs; includes crocodiles, lizards, snakes, and turtles. Image Attributions Show Hide Details Description Discusses the structure and function of reptiles. Learning Objectives None Related Materials Reptile Structure and Function - Advanced Difficulty Level: At Grade Authors: Douglas Wilkin, Ph.D. Jean Brainard, Ph.D. Tags: diaphragm ectotherm keratin (3 more) lungs reptiles SCI.BIO.836.1.L.1 Subjects: science Biology Concept Nodes: SCI.BIO.836.1 (Reptile Structure and Function) Grades: 9 , 10 Date Created: Feb 24, 2012 Last Modified: Aug 28, 2016 Vocabulary None Save or share your relevant files like activites, homework and worksheet.To add resources, you must be the owner of the Modality. Click Customize to make your own copy.