A monotreme is a mammal that lays eggs.
The platypus is a monotreme mammal.
Yes a monotreme does have a backbone because it is a type of mammal and a mammal is a vertebrate.
An echidna IS a mammal. It is an egg-laying mammal, known as a monotreme,
No.
That is the correct spelling of "monotreme" (a mammal that lays eggs).
A monotreme is a kind of mammal. It just has a different type of reprooductive system as most other mammals.
A platypus is a monotreme, which is an egg-laying mammal.
Yes. A monotreme is a mammal that reproduces by laying eggs. The two monotremes are the platypus and the echidna.
A Duck-billed Platypus is an Australian example of a monotreme, a mammal that lays eggs.
A wallaroo is a marsupial.
Yes. Ornithorhynchus anatinus is the scientific name for the platypus, which is a mammal, and a monotreme.
The aardvark is a placental mammal.