One of the group members burning the saltine and the chip disagreed with the hypothesis. "The two foods both contain starch," was the student's rational for her objection. "The temperature difference is a result of measurement error." How would you respond to this student?

there's the proffessional site that will you.

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.