False. The urinary system does that not digestive syst.
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: B
Explanation: B is a brain doctor who uses x-ray on other equitment for brain treatment A,C and D are mental health professionals
Answer:
The blood picks up co2 and also waste from the tissue. So I am guessing that it is co2.
Hope this helps.