The physical barrier of the immune system is your body tissue and skin.
A placebo bias is when a participant's behavior changes even when they are not receiving the experimental treatment. Next, explore sample and variables.
I personally think C because your focused on someone else not yourself so it makes you not think of your stress for that period of time.
Answer:
Lymphocyte
Explanation:
A type of white blood cell called a lymphocyte recognises the antigen as being foreign and produces antibodies that are specific to that antigen.
Answer:
Climate change increases the risk of illness through increasing temperature, more frequent heavy rains and runoff, and the effects of storms. Health impacts may include gastrointestinal illness like diarrhea, effects on the body's nervous and respiratory systems, or liver and kidney damage.
Explanation:
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