I believe the correct answer is "Carbon dioxide"
<u>Which types of proteins help defend the body against foreign agents like bacteria?</u>
<u>antibodies</u><u> </u>
<u>it's</u><u> </u><u>simple</u><u>.</u><u>.</u><u>.</u>
Answer:
c
Explanation:
whan amsmsjsjsussjsjsjsjzijsjs
