The chromosome complement in a moss protonema is:
1n
2n
3n
varies with the size of the protonema

answer; polycythemia is the correct answer;

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

answer; ///the above statement is (true);