What are for scales?
Keep the animal moist so they don’t dry out.And adds a layer of protection.
What are key features of a bird?
coldblooded veritabrites with scales and fins
What is an endotherm?
coldblooded
What is an ectotherm?
warmblooded
What are the key features of a bird?
vertebrates with hallow bones,wings,feathers,and lay eggs
Mammals
vertebrates with fur/hair,breast milk,lungs,and are warmblooded
What are key features of amphibians?
vertebrates with moist skin,regenerative properties,and are coldblooded.