The pictures below show the bone structures of three different animals.

the similarity in structure of the bones of these animals suggest:
group of answer choices

the size of the bones is the same

these species share a common ancestor

these species developed at the same time and location

the chemical makeup of these animals is exactly the same

The answer is B.

Explanation:

The reason for this is because, they're arms, fins, and wings all have the same finger bones which lead to a/an common ancestor.

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.