Answer:
Explanation:
When the body senses foreign substances (called antigens), the immune system works to recognize the antigens and get rid of them. B lymphocytes are triggered to make antibodies (also called immunoglobulins). These proteins lock onto specific antigens.
Answer:
Most systems depend on the chemicals produced by it to run smoothly
Explanation
Your endocrine system includes your thyroid, which helps produce certain aiding hormones
Answer:This proves more teens admitting to drinking while driving in 2004 than 2013.
Explanation:
18 of March and fertile window starts 14 of March
I researched and I believe the answer is both 2 and 4.