its heart or brain
Your Heart
Well what one are you talking about then I will tell you:)
You can tell that you are absorbing radiant energy from the sun if you feel warmth on your skin or if you notice a change in your body temperature when exposed to sunlight. This is because the sun's energy is being converted into heat as it is absorbed by your body.
I dont know you tell me...
Cells called macrophages are responsible for getting rid of large particles in the body through a process called phagocytosis. In this process, macrophages engulf and digest the large particles, such as bacteria or debris, to maintain cellular homeostasis and protect the body from foreign invaders.
It would depend on which body part you had. If you had their head, or heart, then I would say yes you can tell if they are dead (they most certainly are in this case). If you had an ear or finger, then no you could not tell if the person were dead.
the brain helps you to tell you what you hear
you tell me
Motor Cortex
tell the body part using for getig food
The main part is the nerves the nerves tell your body to move.
You can't tell where that part of the body is (except by other senses, such as touch and sight).