Vocabulary Review

1. Vocabulary Review Ch 40 – Amphibians

2. An adaptation in an ancestral group that evolves through natural selection to allow new functions in a descendant group Preadaptation

3. The aquatic, fishlike larva of a frog or toad Tadpole

4. A gland in the skin of an amphibian that produces lubricants to keep the skin moist Mucous gland

5. The flow of blood from the right ventricle of the heart to the lungs and back to the left atrium of the heart through the network of pulmonary arteries, capillaries, and veins Pulmonary circulation

6. The movement of blood from the heart to all parts of the body and back to the heart Systemic circulation

7. In animals, respiration through the lungs Pulmonary respiration

8. In animals, respiration through the skin Cutaneous respiration

9. The first section of the small intestine Duodenum

10. The middle portion of the small intestine where many nutrients are absorbed Ileum

11. A membrane that attaches the small intestine to the abdominal wall Mesentery

12. In some animals, the body opening to which the cloaca is connected and through which wastes exit Vent

13. A third eyelid found under the lower eyelid of many vertebrates, including birds, reptiles, and amphibians Nictitating membrane

14. The eardrum Tympanic membrane

15. The axis of the cochlea in the ear bones of some animals Columella

16. The copulatory embrace of amphibians Amplexus