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astra-53 [7]
3 years ago
8

Accounting for about 1 percent of total blood volume, __________ form a protective, movable army to defend the body against bact

eria, viruses, parasites, and tumor cells.
Biology
1 answer:
amm18123 years ago
7 0
Leukocytes


Hope that helped, Good luck! (:<span />
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