The difference between a point mutation and a chromosome mutation is a nucleotide is changed

a nucleotide is removed instead of added

the amount of DNA that is changed

there is no difference

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d

your spelling is a little off : ]

its temperature is increasing. this causes molecular vibrations to increase.