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:
No, its normal for a 15 year old boy to play sports
Explanation:
False when making a decision you should always be concerned about the outcome of yourself and the people around you.
illegal use of ergogenic substances
Answer: b
Explanation: players at high level can pass the ball quickly enough to the players who is about to or already be in the air.
