Mammalians and birds are ___ blooded
Mammals and birds are the only true warm-blooded animals. They are called endotherms, meaning they produce their body heat internally.warm-blooded animals have body temperatures that usually stay the same.
Mammalians and birds are ___ blooded animals
Birds and mammals share one of the following characteristics as a common feature.
(a) Pigmented skin
(b) Pneumatic bones
(c) Viviparity
(d) Warm blooded body