This taxonomical classification is divided into two subclasses: Prototheria and Theria, which refer to the way in which embryos are developed.
This taxonomical classification is divided into two subclasses: Prototheria and Theria, which refer to the way in which embryos are developed. All organisms possess a neocortex, a part of the brain that is unique to this class. Most organisms in this class have the sex-determining region Y, although the platypus has the ZW system similar to that of birds. Except for the five species of monotremes, all organisms in this class give birth to live young. For 10 points, identify this class of vertebrate animals whose name comes from the specialized sweat glands that produce milk.
This taxonomical classification is divided into two subclasses: Prototheria and Theria, which refer to the way in which embryos are developed.
Mammalia or mammals