Within an egg, there is usually an asymmetry in the distribution of yolk and other factors. This asymmetry indicates that the egg a:is pluripotent b:is determined c:has undergone pattern formation d:has polarity e;has unipotency

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.

i'm thinking 600 feet deep in one of the finger lakes.

answerhomologous structures;