_______1_______ are animals with backbones. It includes mammals, reptiles, ______2_______, birds, and fishes. Most _________3______ develop their young inside their mother's body and feed their young with milk from the ___________4__________. _________5_________ have dry scaly skin while ______________ the only animals with feathers. ___________________ spend part of their lives in water and part on _______8_______. Fish usually have tails and paired _______9___ on its back and on its belly that enables it to _____10_______.
amphibians, reptiles, mammals, birds, vertebrates, land ,fins ,mammary ,gland ,swim
pag pipilian po