Yes, all matter is made up of atoms - both living things and inanimate objects.
By weight or by number of atoms? By number of atoms
Oxygen and carbon
Electrons are in atoms found even in the human body.
EVERYTHING in the human body is made of atoms... except perhaps the atoms themselves.
You will find cells in any living thing or person.
none
A human body as everything else, is composed ultimately by atoms
It can be in whole body of human.
The human body is about 70% water which is H2O, so most of the atoms are hydrogen. But hydrogen atoms are very light, so by weight, most of the atoms are oxygen. By weight, the human body is 65% oxygen, 18% carbon, 10% hydrogen, 3% nitrogen, 1.5% calcium and 1.2% phosphorus. Those 6 elements account for over 98% of all the atoms in a human body.
calcium
Hydrogen
THC is the active component in marijuana. It is found in the human body if that human has smoked or eaten marijuana.