Question

CAN SOMEONE HELP?!
Select the term that best matches the given definition.
1. Any substance released by invading pathogens (1 point)
pathogen
antibody
antigen
carrier
2. Infections that are spread from person to person through sexual contact (1 point)
contagious period
sexually transmitted diseases (STD)s
antibodies
vector
3. An organism such as an insect that transmits pathogens (1 point)
antibodies
lymphocytes
vector
pathogen
4. A perparation of dead or weakened pathogens that is introduced into the body to cause an immune response (1 point)
carrier
vector
imm

Answer 1

1. antigen
2. STD
3. Vector
4. Vaccine? (think you missed that one)