When lactose which is a carbohydrate is digested by the human body, what are the names of these smaller molecules? O amino acids
O monosaccharides
O nucleic acids
O polypeptides

monosaccharides

Explanation:

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blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.

i got you i did it ya know what it is just needing to fill this in for a quick task!