The name monotreme is derived from two Greek words meaning "one-holed", because they have just one external opening, the cloaca, for both waste elimination and for reproduction. The cloaca leads to the urinary, faecal and reproductive tracks, all of which join internally, and it is the orifice by which the female montreme lays her eggs.
No, they are a marsupial and not a monotreme. There are only 2 members in the monotreme category which are the echidna and the platypus.
A platypus is a monotreme.
A monotreme is a mammal that lays eggs.
The echidna is a monotreme which eats ants.
That is the correct spelling of "monotreme" (a mammal that lays eggs).
The platypus is a monotreme mammal.
Yes, there is. The echidna is also a monotreme.
The reproductive system of a monotreme empties into the cloaca.
The name monotreme is derived from two Greek words meaning "one-holed", because they have just one external opening, the cloaca, for both waste elimination and for reproduction. The cloaca leads to the urinary, faecal and reproductive tracks, all of which join internally, and it is the orifice by which the female monotreme lays her eggs.
Yes a monotreme does have a backbone because it is a type of mammal and a mammal is a vertebrate.
No.
If by "echind" you mean "echidna", the monotreme mammal (it lays eggs), it does indeed have four legs.