At which point on the phylogeny shown did the amnion first appear?

i'm pretty sure it's spores

d) center of the mid-ocean ridge

give brainleysest

sinserly,

steckh986

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

if you know your abc's you should be able to get your answer or just use google