No, bats are not marsupials, they are placentals, just like humans, whales, cats and cows.
Placentals are mammals. All mammals are vertebrates which means they do have backbones.
Yes
yo kitchen lol
Yes.
an ugly tsamanian devil
Monotremes, marsupials, and placentals
Because placentals are the largest number of mammals.
All mammal except Monotremata and Marsupial
placenta which is between the mother and the embryo.
Placentals
Hedgehogs are placental mammals.