Usually Jim or Jimmy is short for James
"your name is" is correct English and when used in this way means both your full name or a part of your name (usually surname, depending on the context). "your names are" is also correct English, but...
It is the name of its genus.
binominal nomenclature, binary nomenclature, or binomial classification system. so yes
it would be genusmy example it just from what we learned in classex.norno=genus dallus=species