B) antigen, should be your answer
T cell, antibody, and histamine are all created by your body to help combat wounds or foreign substances
hope this helps
Answer:
chloroplast I think.
Sorry if I didn't get this right.
Answer:
they both take in air. chloroplasts take in CO2, and filter it into air. the Lungs breathe that air, and make CO2, which starts a cycle. Hope this helped!
Usually in sedimentary rocks such as limestone and shale.