Obsessive–compulsive disorder (OCD) is amental disorder where people feel the need to check things repeatedly, perform certain routines repeatedly (called "rituals"), or havecertain thoughts repeatedly. People are unable to control either the thoughts or the activities for more than a short period of time.
Answer:
reproductive and endocrine
Explanation:
endocrine because ovaries secrete hormones directly into the blood.
reproductive because they produce egg cells for fertilization
An ecosystem, and our surroundings
Mitosis process that's it
