What can make passive immunity last?
resistance sweating Leptospirosis breast milk smoking tobacco the environment competition fur seals
A B C D E F G H
Breast Milk contains antibodies.
breast milk can make passive immunity last
What can make passive immunity last? (A) resistance (B) sweating (C) Leptospirosis (D) breast milk (E) smoking tobacco (F) the environment (G) competition (H) fur seals