Modern turtles are somewhat similar to ancient varieties. Horseshoe crabs have many similarities to species that lived 445 million years ago.
how the species evolved
Fossils created when minerals gradually replace the organic material of an organism, preserving its shape and structure, are called petrified fossils or replacement fossils. Over time, the original material is dissolved, and minerals fill the space, creating a fossilized replica of the organism.
Evidence that organisms have changed over time is primarily buried in sedimentary rock layers, where fossils are found. These layers form as sediments accumulate over time, preserving the remains of ancient organisms. Additionally, fossils can be discovered in amber, ice, and other natural materials that can encapsulate and protect biological specimens for millions of years. This geological record provides crucial insight into the evolutionary history of life on Earth.
Yes, petrified fossils can form when the organic material of an organism is replaced by minerals from water over time. This process is called permineralization, where minerals fill in the pores and cavities of the organism's remains, creating a detailed replica of the original structure.
Cast fossils: Formed when minerals fill a mold left by a decayed organism. Mold fossils: Created when an organism's remains leave an impression in sediment that hardens into rock. Petrified fossils: Organic material replaced by minerals over time, forming a rock-like replica. Trace fossils: Evidence of an organism's activity (e.g., footprints or burrows) preserved in sedimentary rock. Carbon fossils: Organisms preserved in carbon-rich environments, like coal or oil deposits. Preserved fossils: Organisms remain intact or partially intact due to exceptional preservation conditions.
The horse shoe crab changed very little over time. They are now known as living fossils.
That animals have changed over time
how the species evolved
Fossils created when minerals gradually replace the organic material of an organism, preserving its shape and structure, are called petrified fossils or replacement fossils. Over time, the original material is dissolved, and minerals fill the space, creating a fossilized replica of the organism.
Evolution.
They can learn about evolution, as many living fossils have changed quite a bit over time.
a record that shows how fossils have changed over time
Evolution.
It isn't from fossils, Oil and coal are from ancient fossils that changed into coal and oil over time
because it is hard to solve the fossil and the organism it is
Phylogeny
Evidence that organisms have changed over time is primarily buried in sedimentary rock layers, where fossils are found. These layers form as sediments accumulate over time, preserving the remains of ancient organisms. Additionally, fossils can be discovered in amber, ice, and other natural materials that can encapsulate and protect biological specimens for millions of years. This geological record provides crucial insight into the evolutionary history of life on Earth.