evolved during the Carboniferous Period.

Amphibians And Reptiles of The Carboniferous Period

During the Carboniferous, more and more species of tetrapods evolved. Some were early amphibians that began their lives in the water and later moved onto land. Some were early reptiles that developed leathery skin as they moved to the parts of land that were very dry.

answer; i believe is(b)converging

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