All organisms on earth have the information necessary for building them coded in their genes, and each gene is a part of the organism's unique dna molecule. however, some organisms get all of their genetic material from just one parent organism. when this happens, this is called reproduction.

for all of my study island friends the answer is asexual

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.