13. is a hollow muscular organ located between lungs and it is protected by the ribcage.
a kidney
o lungs
d. brain
14 tt filters the oxygen that enters our body because it contains a filtering structure to ensure the
heart receives clean oxygen
a kidney
b. heart
c. lungs
d. brain
15. It supports each other to allow distribution of nutrients and oxygen to all parts of the
body and the removal of carbon dioxide as a waste product in the body.
a Heart and lungs b. stomach and intestines c. Kidney and heart d brain and skeleton
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Answer:
Explanation:
Heart
The heart is a hollow, muscular organ about the size of a fist. It is accountable for drawing blood within the blood vessels by repeated, measured contractions.
Lungs
The lungs and respiratory system permit oxygen in the atmosphere to be delivered inside the body while also allowing the body to get rid of carbon dioxide in the air exhaled. When you breathe in, the diaphragm pushes downward, approaching the abdomen, and the rib muscles stretch the ribs upward and outward.
Heart and Lungs
The heart and lungs operate collectively to ensure the body has the oxygen-rich blood it necessitates to function.
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Explanation: