.. Studies conducted in England during the Industrial Revolution have shown that children born to poor families were, on average, shorter than those born to wealthier parents. The
most likely explanation for this difference in height is a difference in
O nutrition.
O family size.
O genetic makeup.
O genetic disorders.

genetic make up

Explanation:

this is because the genotype of two parents maybe one was tall the other was for,, environmental factors cannot affect the genotype of an organism,,phenotype can not affect the genotype

The answer is 'Genetic Makeup'.

Explanation:

It's pretty simple.

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.

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project