fossil
A mold fossil forms when an organism's hard parts dissolve and leave a cavity that later fills with sediment, creating a replica of the organism's shape.
When the hard parts of an organism decay and leave a cavity in the rock, a fossil mold can form. This mold is a negative impression of the organism's hard parts in the surrounding rock, preserving the shape and structure of the original organism.
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.
you would have to heat water until boiling and leave ochre in for several weeks
A mold fossil forms when an organism's hard parts dissolve and leave a cavity that later fills with sediment, creating a replica of the organism's shape.
When the hard parts of an organism decay and leave a cavity in the rock, a fossil mold can form. This mold is a negative impression of the organism's hard parts in the surrounding rock, preserving the shape and structure of the original organism.
Plants
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.
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! :)
salt will dissolve
A bony fish because a jellyfish doesnt have that much of bones to leave behind.a bony fish
Cell Biology
When used as a noun (e.g. "going on leave") the plural of leave remains leave. However, leaves is the plural for leaf.
The memory remains!