This means to come up with your own hypothesis or assumptions of something because there is some missing information or not clearly stated.
D because where there is deep n stuff
Provides evidence that human traits can be passed down genetically
The primary function of all lymph nodes is the production of lymphocytes, which help defend the body against microorganisms and against harmful foreign particles and debris from lymph before it is returned to the blood stream. The major clusters of lymph nodes are in six areas.
