A preparation of killed or weakened microorganisms, inactivated toxins, or components of microorganisms that is administered to stimulate an immune
response is called
A. gamma globulin.
B. a vaccine.
C. an antibody.
D. immunoglobulin.

Enzo sits with a small group of friends at lunch. lately, he has been very quiet and stays home a lot even though his friends invite him to go places. he likes to play video games in his free time and is slightly overweight. which behavior is a sign that enzo may need professional mental health treatment? a) being overweight b) playing video games c) withdrawing from activities d) having a small group of friends

What is the healthiest serving of meat

Over-encouraging lesser skilled players can lead to embarrassment. select the best answer from the choices provided. t f