If your immune system attacks your own body parts, then it's called 'autoimmune disease'.
Autoimmune disease can happen at many times due to many problems the body can have. If one thing goes wrong with your body, it can go to another.
Answer:
genes
Explanation: I know this because genes make up chromosomes and those make up our dna.
hope this helps!!!
Answer:
Option A. Air pollution can cause water pollution.
Explanation:
Substances can permeate into the water from the air.
the correct answer is false
