I believe it is class, because species are divided into different classes, but families, for example: there's the cat family, and there's the dog family. classes: the carnivores, herbivores, omnivores OR mammals, egg laying, or hermaphrodites
Vertebrae/Backbones I think.
the answer for your question is C
what is olfactory mean can you help me I don't understand thank you
The percentage of offspring predicted to have blue feathers is 75%