Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
Fish |
Mostly fully aquatic. Gas exchange through gills. Scaly skin. Skeleton of cartilage or bone. No limbs. External fertilization. Ectothermic. |
|
|
Amphibians |
Land living but usually require a moist habitat. Simple lungs for gas exchange. Some use moist skin for additional gas exchange. Adults with four limbs. External fertilization. Aquatic gill breathing juvenile stages. Show metamorphosis. Ectothermic. |
|
|
Reptiles |
Mostly land living. Lungs for gas exchange. Dry scaly skin. Internal fertilization. Eggs have a tough leathery coat. Ectothermic. |
|
|
Birds |
Skin with feathers. Scaly legs. Horny beak. Wings. Well-developed lungs. Internal fertilization. Eggs with hard calcareous shell. Endothermic. |
|
|
Mammals |
Skin with fur/hair. Well-developed lungs. Teeth. Internal fertilization. Young develop internally. Produce milk from mammary glands. Endothermic. |
