Why is clonal selection and expansion so important to the immune response?

A) It facilitates the secretion of cytokines.
B) It enables certain cells to kill target cells.
C) It is critical to the increase in the numbers of specific cells.
D) It facilitates interleukin secretion which in turn directs cell differentiation.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.