Science differs from other disciplines because it relies heavily on facts and principles. Science has this type of policy were if it cannot be proven then it cannot be true and as such scientist do many investigations and test to prove hypotheses true or false.
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Answer:
<em><u>Option</u></em><em><u> </u></em><em><u>b</u></em><em><u>)</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>correct</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>.</u></em>
Explanation:
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Deoxygenated blood leaves the heart and goes to the lungs and then re-enters the heart.