Which factor is important for any process for adapting the aerobic energy system to exercise? A. the requirement for blood to transform ADP to ATP
B. the frequency for the body to rely on the lactic acid system
C. the efficiency of muscles to remove phosphate from the blood
D. the ability of cardiovascular system to pump oxygenated blood to muscles

I’ve personally felt invisible all my life, especially when a friend turned out to be fake and didn’t seem to take any type of interest in what i said or any type of input i said. being invisible is a terrifying feeling to experience due to the fact you feel like no one sees you and just sees you (sorry if that doesn’t make sense). it’s like a deep emptiness that no one can fill, just you; you have to fix that emptiness by yourself and you don’t really want , or in some cases want to be invisible. i can see many invisible people when they intentionally stay away from people that can potentially hurt them in any way. also, when a person intentionally breaks off a connection so they aren’t seen by people.hope it