________ exists when the immune system does not respond to a ...

[newyorker26]

________ exists when the immune system does not respond to a particular antigen.
 A) Immunity
  B) Memory
  C) Adaptation
  D) Tolerance
  E) Versatility

Question 2

Which motor pathway does not end in the spinal cord?
 A) corticobulbar tract
  B) corticospinal tract
  C) vestibulospinal tract
  D) tectospinal tract
  E) rubrospinal tract

[k.lashomb]

Answer to Question 1

D

Answer to Question 2

A

[newyorker26]

Great answer, keep it coming

[irishcancer18]

Thanks for the timely response, appreciate it