What is the
function of the bones in bats
that are homologous to
finger bones in humans?

hurry ..

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

is this a question? wassup