Through my research I found matching questions with similar answers:
A) macrophages
B) antigens
C) antibodies
D) lymph
The best answer to fill in the blank would be the third option C) Antibodies which in the name anti means against, so since the word anti is the same as against, its a battle between antibodies and invaders, so that's why its C).
B. sodium and chloride because an ionic bond only form between oppositely charged particles.
Answer; B
they're bones allow them to lift them up in the sky.
in the nucleolus of the cell
