Lister's lowered infection rate was life saving and his principles have since been adopted worldwide. lister is now known as the "father of antiseptic surgery." which of these is not an application of lister's work?

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?