When physicians perform an organ transplant, they choose a donor whose tissues match those of the recipient as closely as possible. Which of the following cell components must be matched to ensure the recipients body doesn’t reject the new organ? a
plasma membrane proteins
b
phospholipids
c
cell-surface carbohydrate
d
cytoplasm

the correct answer is b

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .