Re: Life is more stable than inorganic chemicals
- From: anon1@xxxxxxx
- Date: Tue, 22 Nov 2005 13:19:15 -0500 (EST)
> When the sun forces energy on an earth liike planet in a sun like
> system, life is that which is most stable - otherwise it would be
> destroyed.
Virtually all life *is* destroyed. It's just that new life is grown to
replace it, by recycling raw materials (chemicals), just as fast as the
old life is destroyed, so the total quantity of life is pretty much a
constant over long spans of time.
Every multi-cellular animal dies, and 100% of its biomass is destroyed
and most of that is re-used as food for other life, and the rest is
chemically degraded to carbon dioxide and other waste chemicals.
Almost every plant or fungus also dies. There are just a few of each
which have survived thousands of years (and gotten rather large in the
process), and some more that have survived hundreds of years (mostly
large trees). But a vast majority of all plant and fungus life that
grows in any given year dies and is destroyed after a while, later that
same year or in a couple years or in a few years.
Even among plants that live for a long time, such as blackberries,
there's a lot of new growth each year, and most of that new growth dies
out and is destroyed later the same year or in a few years.
Single-celled critters proliferate a lot, in blooms, when nutrients are
available, then suffer mass die-outs in other seasons when nutrients
aren't enough to support the already-existing population, not to
mention plankton which are promptly eaten by larger critters. A vast
majority of the biomass of single-celled life dies out one way or
another in less than a year.
With the exception of those multi-thousand-year-old fungi and clonal
trees, there's no such thing as stability even at the organism or cell
level. And even for those mega-year critters, chemically they are
constantly synthesizing or absorbing-and-modifying chemicals to replace
those which are lost to degradation.
Your idea that living things on Earth, as a general rule, successfully
evade getting destroyed, is totally bogus. Perhaps the suicide-bomber
terrorists would be a good metaphor you can understand: Are the lives
of suicide bombers stable? Do they live long happy lives? No. Their
lives are very short. But whenever one commits suicide to kill many
infidels, another is recruited to take his or her place. Most life on
Earth is "throw-away", bred quickly, die quickly, and replaced quickly.
> Name anything 4.1 billion years old that is stable on the face of the
> earth
Nothing organic as far as I know. Every chemical except DNA is
synthesized recently. Only DNA is "immortal". But half the DNA is from
the previous cell generation and half anti-copied from it. Two
generations back, only one quarter is the same and three quarters
anti-copied once or twice. (Due to approximately constant total DNA in
the world's ecosystem, the statstics are approximately the same forward
or backward.) Go back enough generations and the expected quantity of
DNA-bases that still exists today (not even one anti-copy in all that
time) is less than one molecule worlwide, hence most probably zero.
Want me to do the math and show you how far we need to go back such
that the expected number of molecules is less than one? Or can you do
the math yourself?
> Name any aspect of life that makes it LESS stable in the sun heat cycle.
Apoptosis (programmed cell death).
Shedding of leaves in Autumn.
Fruit designed to be eaten by birds or bats then dropped in new areas
to spread seeds far and wide.
Massive shedding of sealife sperm and fungus spores, most of which die.
..
.
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