Organisms with hard parts such as a mineralized shell, like a trilobite or ammonite, are much more likely to become fossilized than animals with only soft parts.
A fossil is evidence of an organisms existence, not a type of rock. Most fossils are found in sedimentary rocks.
Which of the following is most likely to become preserved as a fossil? a jellyfisha clam shella leafa worm
Those that have hard parts that fossilize, are plentiful, ubiquitous and evolve rapidly.
Organic tissues in an organism are typically replaced with minerals during the petrification process, forming a fossil. This process helps maintain the original shape and structure of the organism, but the organic material is essentially replaced by minerals over time.
They are different because casts and molds are just an imprint (or a copy) of the organism's body. The soft parts of the organism would most likely decay, and the shell, bones, or just the outer hard parts would be fossilized.
lisards
water
Clam
A hard shell organism have more of a chance to become a fossil .
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The presence of fins on a fossil suggests that the organism likely lived in water at some point in its life. This could indicate that the area where the dig took place was once covered by water or that the organism had adapted to an aquatic environment.
the organism must be buried in sediment soon after it dies.
A fossil cast is a type of fossil formed when sediments fill in the hollow space left by a decomposed organism. The sediments harden into rock, preserving the shape of the organism in the form of a cast. This can provide scientists with valuable information about the size and shape of the original organism.
By looking at the fossils and seeing how they change over time.
horse
false
A fossil is evidence of an organisms existence, not a type of rock. Most fossils are found in sedimentary rocks.