The key difference between the shell on the left and the cast fossil on the right lies in their formation. The shell is a physical structure that was once part of a living organism, while the cast fossil represents a replica of the original shell's shape created by sediment filling in the mold left behind after the shell decayed or was removed. Essentially, the shell is the original material, whereas the cast fossil is a mineralized impression.
A beaker of water. Fill the beaker to a certain point, put the fossil in the water and see how many ml the water goes up to. The difference between the original fill line and the fill line after dropping the fossil in is the volume in ml.
fish have scales and crabs have a shell
You can tell the difference between a 2s sub-shell and 2p sub-shell from their energy levels, because a 2p sub-shell is a higher energy level than a 2s sub-shell.
No, a thin cavity in a rock showing where a shell has decayed is not considered a fossil. Fossils are the preserved remains or traces of ancient organisms, such as bones, shells, or imprints, that have been naturally preserved in rock or sediment over time. The empty space left behind by a decayed shell would be considered a mold or cast, not a fossil.
Not necessarily. It may be just a fracture.
how can you tell the difference between a tortoise and a turtle by shell in picture
C is a programming language. A shell is an interface.
A fossil is of non-human origin (e.g. animal bone) that has not been altered by humans in any way. An artifact is a product of human activity including bone and shell tools and ornaments, ceramic vessels, metal objects, etc.
Nematodes MolluscsLongitudinal musclesMuscular footPseudocoelomatesCoelomatesnever has shell some has shell
A beaker of water. Fill the beaker to a certain point, put the fossil in the water and see how many ml the water goes up to. The difference between the original fill line and the fill line after dropping the fossil in is the volume in ml.
The only difference is the colour of the external shell.
About 2 inches
the maker.
fish have scales and crabs have a shell
Yes it is.
A shell structure supports its self and a frame structure does not support it self.
shell uses an odd number,merge uses an even number?