"Vaccination works to stimulate a specific immune response that will create memory B and T cells specific to a certain pathogen. These memory cells persist in the body and can lead to a quick and effective response should the body encounter the pathogen again."
its the same idea...
1. the improper functioning of the body brought about by heredity, infection, diet, or the environment
disease
2. cannot be spread through contact or any mechanism of transmission
non - infectious disease
3. caused by the spread of harmful microorganisms
infectious disease
4. caused by the multiplication of a small infectious agent which invades a host cell and then destroys it
viral infection
5. caused by the reproduction of a small infectious agent which produces poisons that destroy cells
bacterial infection
6. caused by the multiplication of fungal organisms on or in the body
fungal infection
7. caused by microscopic parasites
protozoan infection
It is DNA that contains the genetic code that is used to make proteins. In turn, it is the structure of proteins that determines many of the biological functions and physical characteristics of an organism. Genes are segments of DNA. ... During transcription, the two strands of DNA unwind.
the answer is clearly b) losing a loved one in an accident