The transfer of antibodies from a mother to the fetus. This occurs naturally, and since it is the transfer of antibodies, it is passive immunity.
Answer:
Krill
Explanation:
All animals in the Antarctic depend on krill, very small crustaceans, for their survival.
<span>The process when molecules tend to move from an area of high concentration to an area of low concentration is diffusion! I hope I helped :D</span>
