Answer:
A
Explanation:
cos blood flow helps in body functioning as well as oxygen to breathe and so on
B.
The main organs of the excretory system are the intestines.
Answer:
Oxygen is a chemical element that constitutes 21 percent of the Earth's atmosphere, that is capable of combining with all elements except some noble gases, that is active in physiological processes of almost all known organisms, and that is involved especially in combustion — see Chemical Elements Table.
Explanation:
hope it helps
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Your medical records contain the basics, like your name and your date of birth. They also include the information you give to your family physician, dentist, or other specialist during an exam.
