It is A, i just took the test!
Hope this helps!
Answer: Red blood cells, also referred to as red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen to the body tissues—via blood flow through the circulatory system.
Explanation:
Bioelectrical impedance machine
Answer:
A
Explanation:
because all of the other answer are an affect of tobacco use so A is correct
