asked 46.1k views
3 votes
HURRY

In order to fight invaders, an immune response
A can recognize substances that are not a part of the body.
B releases a substance that acts as a pathogen.
C is activated by cancers.
D can recognize viruses in the body, such as E. coli.

2 Answers

0 votes
I think it’s A because it needs to recognize substances that are not part of the body to fight them it will not just fight your regular red blood cells so there for it has to be A
answered
User Cody Caughlan
by
8.3k points
1 vote

Answer:

A?

Step-by-step explanation:

answered
User Ericca
by
7.5k points
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