Author Question: Secondary immune responses upon a second exposure to a pathogen are due to the a (Read 791 times)

futuristic

  • Hero Member
  • *****
  • Posts: 638
Secondary immune responses upon a second exposure to a pathogen are due to the activation of
A) memory cells.
B) macrophages.
C) stem cells.
D) B cells.
E) T cells.



aero

  • Hero Member
  • *****
  • Posts: 512

Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

For a complete list of videos, visit our video library