The answer being sought is monera, but this isn't correct. Monera was a kingdom under Woese's Five Kingdom system, but that system hasn't been used in science since the 1970s. Tecnhically, the correct answer would be bacteria, which contains the same organisms that the former clade monera contained. But given that monera is an option and bacteria is not, monera is the answer the question is seeking.
Bones of snakes are very loosely fused together like in humans. Hence these bones can move individually allowing the snakes to be really flexible. The ribs of snakes do not join like those of humans but instead, have free ends and do not have a sternum.
