There are different types of fossils according to how the organism or something related to it is preserved. 1. C), 2. F), 3. E), 4. D), 5. B), 6. A)
Amber is basically resin or sap produced by coniferous trees.
Small animals and plants get trapped in this material, and their remains are preserved for years as fossils.
Amber fossils have shown a high real fidelity, preserving all the individuals' parts and even their original color in some cases.
These fossils are created when the organic matter of the dead organism decomposes and leaves a mold with its shape. This mold is an imprint in the substrate.
Cast fossils are imprints created from the decomposition of organic matter that leaves the mold of the organism in the substrate. Then this mold is filled with minerals and other sediments that get hard to form a solid rock.
Trace fossils provide information about the organisms based on traces. They are marks or elements left by organisms that do not include parts of their bodies.
These are a very common type of fossil and very significant since it gives an idea of how organisms used to live. Nests, footprints, and tooth marks are examples of this type of fossil.
These are fossils that keep the true form of the organism. In this case, parts of the body or the whole body have been replaced by minerals that later get hard and form a solid rock.
These fossils are created when the organisms makes an imprint in a soft material. They do not contain organic matter. When the soft material gets hard, it fossilizes the imprint.
According to this information, we can match each type of fossil with its description.
Type of fossil
Description
a) formed when remains trapped tree sap.
b) impressions from very thin objects trapped in mud and transformed
into rock.
c) formed when remains of living things leave an impression on a rock.
d) preserved remains that are transformed into rock.
e) preserved records of life like a footprint or a trail.
f) a raised fossil that has filled in the impression from a mold.
1. mold fossil ⇒ c) formed when remains of living things leave an impression on a rock.
2. cast fossil ⇒ f) a raised fossil that has filled in the impression from a mold.
3. trace fossil ⇒ e) preserved records of life like a footprint or a trail.
4. petrified fossil ⇒ d) preserved remains that are transformed into rock.
5. imprint fossil ⇒ b) impressions from very thin objects trapped in mud and transformed into rock.
6. amber fossil ⇒ a) formed when remains trapped tree sap.
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