I think it is because of a varicose ulcer, might not be right though
Vegans do not eat any animal product including dairy and fish
Answer: Those parts is were all the oxygen is distributed through the human body, and so technically it can be considered the respiratory system.
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Hopes this help
Answer:
Both tests test the endurance and strength of muscle, but they evaluate muscles in different areas of the body. The curl-up test is used for the abdominal muscles while the arm hangs test, as is said in its name, test the arm muscles.
Explanation: