Select the best response from the drop-down menus.✔ Red blood cellsWhite blood cellsLeukocytes are the main transportation system to send oxygen to the tissues and organs in the body.

Question

Revolt · Accepted Answer

✔ Red blood cells; are the main transportation system to send oxygen to the tissues and organs in the body.: Red blood cells; serve as the body’s defense system against infections and other diseases.: White blood cells

Blood

Select the best response from the drop-down menus.✔ Red blood cellsWhite blood cellsLeukocytes are the main transportation system to send oxygen to the tissues and organs in the body.

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