Which environmental factor does behavior genetics research suggest plays an important role in shaping temperament generally?

Relationship with parents

Explanation:

The environmental factor which affects the behavior of the person is relationship of the child with their parents.

The temperament broadly refers to the difference in the behavior of the individual that is biologically based on the parents and is independent of the learning and values.

This is not dependent on the behavior and the teachings, it is dependent on the behavior which is inherited from the parents to the children.

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.