Carbon14 dating (isotopic dating)
7 protons, 7 neutrons and 7 electrons
when you bite into the food
White blood cells are the part of blood that fights germs that enter the body. They recognize and attack harmful pathogens to help keep the body healthy.
they enter the bloodstream. when you get cut for example, the capillaries are broken, so there, the pathogens enter.
How does hydrogen enter the human body?
The main limitations of using Carbon14 dating to find the age of something that is carbon base are firstly the possibility that carbon may be absorbed by some things making it more difficult to get an absolutely accurate age and secondly, with Carbon14 only having a half life of 5,568 years the maximum theoretical limit for detection is 100,000 years.
Carbon is a non metallic element. Mass number of it is 12.
Carbon14 dating (isotopic dating)
which part of the body doesn't enter the blood
7 protons, 7 neutrons and 7 electrons
Cocaine can enter the human body by the nose or the mouth. You can snort it or sniff it.
Barbiturates enter the body orally. You can swallow, eat, and drink it.
how do coenzymes get into your body?
To oxygenise the body.
no
The parasites enter the body by way of a cut or via the eyes or mouth