State a characteristics of a bird, rat and frog that makes them vertebrates

Vertebrates are animals that have a backbone or some sort of spinal column, they are also called vertebrae. Vertebrates include, mammals, birds, reptiles, amphibians, and fish.

Birds: All birds have a spine and they can fly and they rule the sky, unlike bats.

Rats: They are mammals due to the fact they have a spine, so it makes them a vertebrae.

Frogs: They are amphibians, and all amphibians have a spine.

Hope I helped :)))

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.

c. the initial amount of money placed in the savings account