| A | B |
|---|
| reptile | vertebrate animals that have lungs, scaly skin, and a special type of egg |
| amniotic egg | reptilian eggs surrounded by a shell and several membranes |
| transition fossil | amphibia-repitilian borderline change |
| internal fertilization | the male reptile deposits sperm into the body of the female |
| carapace | the dorsal part of a turtles shell |
| plastron | the ventral part of a turtles shell |
| ectotherm | heat from the outside the body |
| endotherm | heat form inside the body |
| bird | an endothermic reptile like animals w/ an outer covering of feathers |
| contour feather | large feather that covers a birds body and wings |
| down feather | grows underneath and between cntour feathers(short,soft,and fluffy) |
| powder feather | releases a fine white powder that repels water so it doesnt penetrate |
| crop | an enlarged area of the esophagus where food can be stored |
| gizzard | muscular part of the stomach that often contains bits of gravel |
| air sacs | are connected at the anterior and posterior part of a bird |
