B
Brandon J
Guest
im doing a test review and i do not know the correct answer to this question, can anybody help me out?best answe for the person who answers it.
White blood cells, part of the ___________ system, work closely with the ___________ system to protect us from infection and disease.
A)
circulatory; immune
B)
endocrine; lympathic
C)
circulatory; excretory
D)
circulatory; respiratory
White blood cells, part of the ___________ system, work closely with the ___________ system to protect us from infection and disease.
A)
circulatory; immune
B)
endocrine; lympathic
C)
circulatory; excretory
D)
circulatory; respiratory