Which characteristics do all bony and jawless fish have in common? Check all that apply. backbone
swim bladder
scales
gills
bony skeleton

It's Gills because there not human and use gills to breathe in water

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.