An adaptation is best described as occurring over which time scale? * (10 Points)
A. over many eras
O B. over many generations
O C. over one generation
D. over the lifetime of one individual

they float because they are less dense than the water itself

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

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.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves