Scientists debate about the use of fossils as a tool to determine records of various events, such as the vanishing of the dinosaurs or the origin of our ancestors. Based on what you know of fossils from your textbook and other sources, discuss the role of fossils in helping scientists develop accurate records of the geologic history of the Earth. In your discussion address important discoveries such as the 3.3-million-year-old fossilized remains of a child in the Dikika region of Ethiopia, accounts of which can be found at the following sites (You can access web sites through the AXCESS area):
Scientists debate about the use of fossils as a tool to determine records of various events, such as the vanishing of the dinosaurs or the origin of our ancestors. Based on what you know of fossils from your textbook and other sources, discuss the role of fossils in helping scientists develop accurate records of the geologic history of the Earth. In your discussion address important discoveries such as the 3.3-million-year-old fossilized remains of a child in the Dikika region of Ethiopia, accounts of which can be found at the following sites (You can access web sites through the AXCESS area):
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So what is your question? No one here will write your paper for you.
All I would like to know is what web sites would I find anything about this subject. That is all I would like to know.There is no need to be smart about it. I think I ask this when I wrote this the first time. I can and am willing to write my own paper, all I ask is some web sites that I might find what I am looking for.
The websites are listed in the question!
Jiskha homework help people are just so rude!
In answer to your question yes these are some of the rudest people on the planet. I guess their brains are so huge with information that they do not have the capacity for compassion.
really isn't the name of the website 'homework help' lol
Fossils play a crucial role in helping scientists develop accurate records of the geologic history of the Earth. They provide valuable evidence of past life forms and can reveal information about the environment, climate, and evolutionary processes that have shaped our planet over millions of years.
By studying fossils, scientists can reconstruct the evolutionary history of various species and track changes in biodiversity over time. For example, the discovery of the 3.3-million-year-old fossilized remains of a child in the Dikika region of Ethiopia has provided important insights into our human ancestors. This fossil, known as "Selam" or "Lucy's baby," belongs to the species Australopithecus afarensis and offers valuable clues about the origins of bipedalism and early human development.
To develop accurate records of the geologic history of the Earth using fossils, scientists employ various methods and techniques. Here are some key approaches:
1. Stratigraphy: Fossils are often found in sedimentary rocks, which form layer by layer over time. By studying the position of different fossil assemblages in the rock layers, scientists can establish their relative ages. This allows them to create a chronological sequence of events and organisms, providing a framework for understanding the geologic history of a region.
2. Radiometric dating: Certain isotopes, such as carbon-14 and uranium-lead, decay at known rates over time. By measuring the ratio of parent isotopes to daughter isotopes in a fossil or rock sample, scientists can determine its absolute age. This helps establish precise dates for important events in Earth's history, such as the extinction of the dinosaurs or the emergence of early humans.
3. Comparative anatomy: Fossils preserve the physical characteristics of past organisms, allowing scientists to compare them to living or closely related species. By analyzing similarities and differences, scientists can infer evolutionary relationships, trace the origins of specific traits, and reconstruct the evolutionary history of different groups of organisms.
4. Paleoenvironmental analysis: Fossils can provide information about past environments and climate conditions. For example, the presence of certain plant or animal fossils may indicate the presence of specific habitats or ecosystems. By studying fossilized pollen, scientists can reconstruct past vegetation patterns. Additionally, stable isotope analysis of fossils can yield insights into ancient climates and food webs.
In summary, fossils serve as valuable tools for scientists in developing accurate records of the geologic history of the Earth. They provide evidence of past life forms, help reconstruct evolutionary processes, and contribute to our understanding of environmental and climatic changes over time. The discovery of significant fossils, such as the 3.3-million-year-old fossilized remains of a child in Ethiopia, offers important insights into our ancestors and the origin of our species.