Answer:
The human respiratory system contains the organs that allow us to get the oxygen we need and to remove the waste carbon dioxide we do not need. It contains these parts: two lungs. ... various structures in the chest that allow air to move in and out of the lungs.
HIV directly attacks CD4 helper lymphocytes directly. (D)
This is because iron is used to make a protein called hemoglobin. This protein helps blood cells carry oxygen around the body.
Answer:
the shape of the object would change
Explanation:
A method of raising livestock and moving herds.
