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These are called "replacement fossils" also "petrification"
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∙ 11y ago
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Fossils can only form when?
Fossils can only form when the conditions are right. These conditions are in a sedimentary layer of the earth which are able to preserve soft and hard parts of the item.
What kind of animal part leaves the most distinct fossil?
Animal parts that are soft and don't have a skeleton leave the worst imprints. Fossils are made with animal parts that are hard and durable.
Is it true fossils can form when the remains of anorganism decay?
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.
What soft parts of organisms are most likely to become fossils?
Those surrounded by skeletal structures
What is so nice about fossils that have been encased in amber or ice?
They do not decompose as quickly as other fossils, so tissue and other soft parts tend to be preserved.
Fossils can only form when?
Fossils can only form when the conditions are right. These conditions are in a sedimentary layer of the earth which are able to preserve soft and hard parts of the item.
What type of organisms are more likely to be fossilised?
Ones with hard bony parts, soft tissues do not from fossils.
Why do only the hard parts of organisms generally leaved fossils?
When an organism dies, its soft parts often decay quickly or are eaten by animals
Why is Precambrian history more difficult to study than more recent geological history?
no fossils of organisms with hard parts. the few soft body part fossils found rarely fossilize well.
What kind of animal part leaves the most distinct fossil?
Animal parts that are soft and don't have a skeleton leave the worst imprints. Fossils are made with animal parts that are hard and durable.
Is it true fossils can form when the remains of anorganism decay?
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.
What fossils form from impressions made in soft mud?
Imprint
What soft parts of organisms are most likely to become fossils?
Those surrounded by skeletal structures
What is the main difference Between hard and soft corals?
The difference is in the name; soft corals are soft have body ; with no bony or hard Parts
Do all organisms become fossils?
No. The hard bones are more likely to form a fossil. The soft parts will degenerate over time. This is why most of the fossils from the Pre-Cambrian and Cambrian periods are mostly shells, not the actual animals that inhabited them.
What is so nice about fossils that have been encased in amber or ice?
They do not decompose as quickly as other fossils, so tissue and other soft parts tend to be preserved.
What is the difference between hard corals and soft corals?
The difference is in the name; soft corals have a soft body, with no bony or hard parts. In contrast, hard corals have a hard endoskeleton made of calcium carbonate.
