Before having children, a couple prepares a pedigree of their family for one particular autosomal dominant disorder. They chart all of their relatives back three generations. From this information, can they determine whether or not they will have a child with the disorder? Possible, but not guaranteed
No
Yes, absolutely.

there are plastid colour pigment organelle containing a verity of colours

              plastids contain of three organelles 1) chloroplast   (2)   chromoplast   (3)   lecoplast

            the verities of colours are present in chromoplast rather than green so, petals of sun flavour colour is due to chromoplast.

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