The correct answer is D, white blood cells.
We know that red blood cells deliver nutrients and are not apart of the immune system; platelets are responsible for coagulation, which has nothing to do with the immune system, and plasma is a substance that, again, has nothing to do with immunity. White blood cells are the only things that fight disease (antibodies are white blood cells)!
I hope I helped!
(By nothing I meant very little to none).
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In the thylakoids of the grana, light reactions take place and in the stroma , dark reaction takes place. So all in all, in both places together photosynthesis is carried out
Smallpox- began Africa, spread through trade and human interaction.
Chestnut blight-isn't this a chestnut found in America?
All of the answers would be correct,
hope this helped!! <span />
