endorphins
Water and oxygen are two chemicals necessary for human life.
The human made chemicals that destroy the ozone are CFCs. These CFCs are ones that decompose the ozone molecules.
Chemicals that have certain hallucinogenic effects on the human nervous system are mainly classified as tryptamines. More exotic tryptamines are also classified as ergolines, and ibogoids. Other groups of chemicals that have these effects are phenethylamines and substituted amphetamines.
HEalth
That they have both DNA Bacterial DNA is a (closed) circle, those of human is lineair (straight) if you stretch it. Bacterial DNA does not have Proteines, Human DNA has Proteines. Bacteria have also RNA The DNA of bacteria is easy to reach , those of human not.
A human?
A human fingernail
Android.
The questioner misunderstands the subject. Hydrocodone is an OPIATE, meaning that its effects on the human body and its chemical makeup make it identifiable as belonging to the opiate family of drugs.
The eardrum.
the brian
The inner ear
yes, sciene may duplicate many chemicals present in human body but not all.
Water and oxygen are two chemicals necessary for human life.
All chemicals are poisonous.... Toxicity of chemicals is measure of the chemical's impact on human or ecology.
sedimentary
sedimentary