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The primary source of radioactivity in the human body is Carbon-14. However the level of Carbon-14 remains constant in the body as the human body is in equilibrium with the atmosphere as long as the body is alive. Therefor there is no halflife until the body dies; then it matches the halflife of Carbon-14.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoHalf-life is a mathematical and scientific description of exponential or gradual decay.
Half-life may also refer to:
In science:
Biological half-life, pertaining to organisms (also refers to "elimination half-life", a pharmacokinetic parameter in medicine)
Effective half-life, the effective radioactive half-life in organisms after accounting for excre
Wiki User
∙ 13y agoThe time required for half of the atoms in a radioactive substance to disintegrate.
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Is composting related to earth science or life science?
Life Science, as we currently know it, is confined to things living on Earth. Earth Science includes the sciences of natural things happening on Earth, and that includes Life Science. Composting, therefore, relates to both.
What branch of science do entomologist study life earth or physical science?
Earth science
How are life science and physical science related?
The life science and physical science both try to explain the various phenomenon of life.
Is zoology life science earth science or physical science?
Earth science is about of course the earth. This includes palentology(study of the past), meteorology(study of climate), geology(study of Earth surface), and volcanology(study of volcanos). Life science is about biology(study of life), botany(study of plants),zoology(study of animals) and icthology (study of fish). Hoped this helped!
Ichthyologist study life science earth science or physical science?
i have no freaking idea (sorry) Ichthyologist study marine life, particularly fish. (Ichthy- is the Greek root for fish) They study life science.
How do life science physical science and earth and space science interact?
2 cups of sugar and a half a teaspoon of vanilla escence, then mix in well
2 main types of science?
The two main types of science are natural sciences, which study the physical world (e.g. biology, physics, chemistry), and social sciences, which study human behavior and society (e.g. psychology, sociology, economics).
Is Astrophysics a life science physical science or earth science?
earth science
Is pollution earth science or life science?
Earth Science I believe
What branch of science is a astronomer in life earth or physical science?
earth science
What kind of science is Marie Curie in physical science life science or earth science?
Earth science
Is composting related to earth science or life science?
Life Science, as we currently know it, is confined to things living on Earth. Earth Science includes the sciences of natural things happening on Earth, and that includes Life Science. Composting, therefore, relates to both.
Ornithologist study life science or earth scienceor physical science?
earth science
What branch of science do entomologist study life earth or physical science?
Earth science
How are life science and physical science related?
The life science and physical science both try to explain the various phenomenon of life.
Is volcanology life science earth science or physical science?
It is a branch of earth science studying volcanoes.
Is zoology classified as a Life Earth or Physical science?
Zoology is the study of animals and therefore is a life science.
