Answer :
Hello!
You forgot the alternatives!!
Here we have:
a. thymus
b. spleen
c. tissues
d. lymphatic ducts
The only structure listed above that is not a specific part of the adaptive immune system is the letter c) tissues. The tissues are a group of cells that do the same job: connective (maintain the organs in their place), muscle (produce movement within internal organs), nervous (sensory input, control of homeostasis etc), and epithelial (protection).
Hugs!
You forgot the alternatives!!
Here we have:
a. thymus
b. spleen
c. tissues
d. lymphatic ducts
The only structure listed above that is not a specific part of the adaptive immune system is the letter c) tissues. The tissues are a group of cells that do the same job: connective (maintain the organs in their place), muscle (produce movement within internal organs), nervous (sensory input, control of homeostasis etc), and epithelial (protection).
Hugs!