Answer:
Irregular, short, long, and flat
Explanation:
C. 20. The average healthy adult should have at least 20 minutes a day.
This is true. yes, this is very true.
The endocrine system is one the system in the human body that regulates all the hormones which aids in the normal functioning of the other systems. Therefore, the major functions of the endocrine system include metabolism, and puberty body. Hope this answers your question.