Yes, all mammals have a skeleton.Yes, all mammals have a skeleton.Yes, all mammals have a skeleton.Yes, all mammals have a skeleton.Yes, all mammals have a skeleton.Yes, all mammals have a skeleton.
That's false. Monotremes lay eggs, from which the babies hatch.
There is no reason other than that Guinea Pigs evolved to be mammals.
All humans are mammals but not all mammals are human.
No, all sea animals are not mammals. Fishes are not mammals, but dolphins are mammals.
All mammals are vertebrates and therefore have vertebrae ... i.e. backbones.
If you mean "Are all mammals primates?" then the answer is no. Primates are a type of mammal. All primates are mammals. Not all mammals are primates. For example, cats, dogs, bears, rodents... these are all mammals, but not primates.
All mammals are vertebrates because they have a spine and spinal cord, and an internal skeleton. They belong to the Phylum Chordata. Mammals, birds, fish, reptiles and amphibians are all vertebrates.
All mammals have bluish blood until it is oxygenated. That's one reason why veins appear blue.
Yes; all mammals have backbones because all mammals are vertebrates.
Yes- they are mammals, all mammals are vertabrates.
All mammals have skin.