Tree Sap Bio Research Paper

Words: 505
Pages: 3

Fossils are preserved, or lasting remains of once-living organisms, such as bones, teeth, shells, and imprints. An organism can be an animal, a plant, an insect or a single-celled form of life. Fossils can be very old. New fossils have recently been discovered on an island called Greenland, that are in rocks that are 3.7 billion years old! Paleontologists are people who study fossils. They can learn a lot of different things about an organism, even about their behavior, just by studying its fossils. Let’s explore fossils.
Fossils can be created in different ways. Amber is tree sap that is hardened. An entire insect can get stuck in the sticky tree sap, which then hardens around it and becomes amber. This type of fossil can be millions of years old. Freezing is another way fossils can be created. An organism can become trapped and frozen in ice for thousands of years. An entire wooly mammoth preserved in ice was discovered in the Arctic recently. The blood was still in its body!
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It’s when a dead organism completely dries out because of a lack of moisture in the area where it died. This can preserve the organism for a long time. Carbonization is when an organism completely dissolves, except for the carbon in it. The carbon is left behind and it reveals the organism’s outline. Molds and casts are impressions of organisms, such as a footprint. They can be created by a dead organism dissolving into Earth, but leaving a mold behind that then fills with minerals and hardens. Permineralization involves mineral deposits, such as silicate, that form a cast of the organism. They can show lots of small