The condition that is necessary for an organism to become a fossil is rapid burial. The process itself is known as taphonomy. This rapid burial process keeps the organism from decaying naturally.
the type of soil it is buried in
Rapid burial and hard parts.
0.36%
Sand is porous, so air get get through it, but mud can keep air out.
Those that have hard parts that fossilize, are plentiful, ubiquitous and evolve rapidly.
Not everything will fossilize because not everything is under the right environment to do so. Animals must die in a wet place in order to fossilize.
the range of conditions within which the organism can live and function
homeostasis
The fossil needs to be in good conditions and it has to be buried the time the organism dies.
because they don't have any bones or solid structures to fossilize
Sand is porous, so air get get through it, but mud can keep air out.
Those that have hard parts that fossilize, are plentiful, ubiquitous and evolve rapidly.
If conditions are poor, the organism may not fully develop.
Not everything will fossilize because not everything is under the right environment to do so. Animals must die in a wet place in order to fossilize.
A mammoth is more likely to fossilize than a caterpillar because a caterpillar has no hard tissue. Bones and cartilage are much more likely to fossilize.
all water must be moved from the body,little to no decomposition from bacterial action can take place
An organism's range of tolerance is usually centered on its optimum conditions.
To scare. Or to fossilize.
Niche
The answer is Salinty