Answer:
its B. <em><u>thoracic</u></em><em><u> </u></em><em><u>cavity</u></em><em><u>.</u></em>
Explanation:
it is the ventral body chamber that contains the pericardial cavity (the heart) and the pleural cavity (the lungs).
A energy barrier must be overcome.
Answer:
D.
Explanation:
DNA consists of genetic material
Cup of boiling water has the higher average, and lake Michigan has the highest total.