I think the answer is nervous system and muscular system work together but i could be wrong.
Answer: OT
Explanation: OT stands for Online Tardy, which is when you are late for your class, and therefore another teacher has to tell you what you missed.
It’s tight lips it Indicates someone is really controlling himself to an extent so as not convert a simple conflict in a fight.
Walking, running, any exercise that increases heart rate
Opportunistic infections (OIs) are infections that occur more frequently and are more severe in individuals with weakened immune systems, including people with HIV. People are at greatest risk for OIs when their CD4 count falls below 200, but you can get some OIs when your CD4 count is below 500.
