The muscular system is made up of over 600 muscles. These include three muscle types: smooth, skeletal, and cardiac. Only skeletal muscles are voluntary, meaning you can control them consciously.
Pedometers, accelerometers, activity trackers, heart rate monitors, and smartphone applications
The answer is B, because carbon monoxide is a poisonous gas, it has no smell or taste and continuous inhalation may choke you to death.
It’s D i’m pretty sure. correct me if i’m wrong:)