Are the endocrine system and reproduction system the same thing?
The Endocrine system is a group of glands throughout your body that regulate the release of various hormones, some of which do aid in reproduction. The endocrine system controls the glands that control growth, metabolism, sleep, mood, body temperature, and so many other things.
The Reproductive system are several organs differing in Males and Females that mature at puberty (thanks to the endocrine system).
So the endocrine system are several glands controlled by various parts of your brain (hypothalamus, pineal gland, pituitary gland, etc.), while the reproductive system is a group of organs.