A cast is formed
fossil
Cast :)
Cast
noFossils can form when the remains of an organism decay. ... When a dead organismis buried, it often decayscompletely, leaving only an impression in the rock in a formof a hollow mold. The hard parts are most likely to leave an impression, although sometimes so can soft parts.
An organism that lost or never had the ability to replicate its DNA could not reproduce itself. This organism (and any like it) would eventually die and leave no descendents behind.
fossil
Cast
Cast :)
Cast
It seals off bacteria, air, and many other things that can cause organisms to decay. If the organism doesn't decay, it remains for... well, forever. As long as it doesn't leave the tar, however! :)
leave
noFossils can form when the remains of an organism decay. ... When a dead organismis buried, it often decayscompletely, leaving only an impression in the rock in a formof a hollow mold. The hard parts are most likely to leave an impression, although sometimes so can soft parts.
you can prevent it if you do not leave it out in open air for a long time
Yes. It is caused by eating sweet/sticky foood and NOT BRUSHING TEETH PROPERLY.
iron
It depends on which isotope you are asking about. Some decay through alpha, some decay through beta, some decay through other processes. All can leave the nucleus in an excited state, resulting in gamma emission.
Because of the warmer tempatures decay is mostly a chemical reaction and all chemical reactions are accellerated by warmer temps