Suggest why micro-organisms can grow and divide very quickly if they get into blood?

Which of the following is an advantage of solar energy?

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?