Answer:
Harmful
Explanation:
When you have an autoimmune disorder, your immune system does not distinguish between healthy tissue and potentially harmful antigens.
Answer:
a. Produces antibodies in response to antigen exposure in the brain tissue
b. Found in the ventricles of the heart brain
c. Produces by te choriod plexus
d. Blocks blood toxins from brain tissue
e. Prevents concussions.
Explanation:
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Because fish need light to see
