DEFINITIONS AND KEY POINTS FOR OBJECTIVES IN REPTILES
| TERMS | DEFINITIONS |
| Keratin | Keratin is a resistant protein. |
| Carapace | The dorsal portion of the shell of turtles is the carapace. |
| Plastron | The ventral portion of the shell of turtles is the plastron. |
| Aestivation | Summer hibernation is called aestivation. |
| Ecdysis | The process in which reptiles periodically shed their outer
epidermal layers of the skin is called ecdysis. |
| Autotomy | The loss of tail is called autotomy. |
| Bipedal | The walking on the hind limbs is called bipedal ism. |
| Ectotherms | The animals which use external heat sources tot thenuoregulation are called ectotherms. |
| Endotherms | The animals which generate internal heat during metabolism are called endotherms. |
| Torpor | Torpor is an inactive stage |
| Flibernacula | Heat loss from these groups is called hibernacula. |
| Metanephric kidney | A kidney derived from the lower part of the mesonerphric kidney is called metanephric kidney. |