asked 3.9k views
4 votes
The ________ of the immune system are designed to recognize foreign or harmful substances (antigens), such as

a) flu viruses,
b) bacteria,
c) and tumor cells,
and then destroy or deactivate them.

asked
User Trace
by
8.4k points

1 Answer

3 votes

Answer:

plasma

Step-by-step explanation:

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