Cerebral dialysis is a method of stimulating the brain. stimulating the neuroendocrine system. measuring changes in the extracellular concentrations of various neurochemicals at particular sites in the brains of active animals. 6-OHDA. recording AEPs.

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

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