3.1.3 Immune System Warmup

Organisms with a ________ infectious dose are much more dangerous.

• high

• low

Which of the following are considered INNATE or NONSPECIFIC defenses? (Select all that apply.)

• Skin

• Inflammation

• B-cells

• Nose hair

• T-cells

True/False: Your body cannot make antibodies for pathogens that you have never been in contact with.

• True, because your body needs to encounter the pathogen at least once in order to create the antibodies.

• False, because you can make antibodies via immunizations given by a doctor.

What is the function of antibodies within the immune system?

• Antibodies kill off any antigen that enters the body.

• Antibodies are only made when you are given a vaccination for specific antigens.

• Antibodies bind to specific antigens to flag for destruction.

• Antibodies are part of an external defense mechanism.

________ produce antibodies.

• T-cells

• B-cells

• Phagocytes

• Antigens