While the author of the article believes that Brachiosaurus were aquatic animals, the professor disagrees with this statement. The professor points out that in spite of the fact that some species of dinosaur would spend a great deal of time in water, there was no possible that Brachiosaurus were aquatic ones. To strengthen her point, the professor provides sufficient evidence respectively to the points made in the article.
Chapter 4 Summary: From both the title of the chapter and the introduction by Dr. Shubin, this chapter begins with a focus on teeth. Because the function of teeth is to break down food before it enters the esophagus, the different shapes of teeth can represent many different things about the organism it belongs to including what type of eater it was (carnivore, herbivore, or omnivore). Teeth are the hardest tissue (not bone) in the human body and therefore fossilize well. As Dr. Shubin stated in chapter one, there must be many points that permit a fossil to make any kind of scientific conclusion. Obviously, the state of their presence is important, so the fact that teeth preserve well allows for them to be great specimens for analysis. Dr. Shubin and his team analyzed fossilized teeth in areas as different as Nova Scotia and the Arizona desert. Studying different fossils in these diverse regions allowed the team to see that mammalian and reptilian teeth are very different. For example, mammalian teeth differ from organism to organism to fit with the organisms need (Cheetahs that eat only meat will have different teeth than deer who are herbivores) and are replaced only once in the lifetime of the organism while reptilian teeth are usually sharp and are constantly replaced if damaged. These differences allowed scientists to characterize fossils as either a reptile or a mammal. Similar to Tiktaalik discussed in chapter one, the discovery of fossils that were part reptile and part mammal allowed the researchers to see that mammals evolved from reptiles, and further supported the theory of evolution. Further studies yielded even more
The reading passage proposes three theories which support the idea that a dinosaur which is called edmontosaurus survived in the winter by migrating to the south, the more hospitable region than the extremely cold in the North Slope. However, the professor in the listening respectively contradicts each theory in the reading passage by using strong evidence as support.
The Hidden Symbolism In Bone Chinese immigration to America began as early as 1838 and continues on to this date. The time period of Chinese immigration is broken up into three periods, 1849-1882, 1882-1965, and 1965- present. 1848 was when the first mass immigration of Chinese citizens to the Unites States came about . Immigrants flooding to Northern California for the same reason why thousands of other American born citizens were flooding to California, the thought of striking it rich in gold. However, because of the large number of laborers entering the country the U.S. government passed the Chinese Exclusion Act in 1882 which prohibited the entrance of Chinese laborer into the country for ten years. Due the second world war and the bombing
Fossil discoveries are extremely significant to science and they help people better comprehend the world they live in. Without these discoveries science wouldn’t of grown like it has and people would not know much about the Earth. The fishapod and the dinomummy are two fossil discoveries that have made a gigantic impact on science. The fishapod helped fill the gap between land animals and water animals and the dinomummy proved that dinosaurs vertebrae are different than scientists have been placing them. However, the most important part is the preservation of these two ancient creatures. If they hadn’t of been preserved like they had, then they would never of been discovered and scientists wouldn’t get to learn from the remains of these creatures.
Second, the author thinks that business in selling the fossils, reduce the access of scientists to these fossils as a great source of scientific evidence, but the professor explains that all fossils need scientific evaluation by scientists for price marking, so all fossils are
In the science of paleontology, the history of life is studied. Paleontologists study fossils to learn the past ecologies, evolution, and the origins of humans. In order to understand the processes that have led to both the origination and destruction of organisms since life began, paleontologists incorporate both scientific knowledge and studies. Fossil findings are critically important for confirming predictions of evolution theory. Of the many discoveries that are made yearly to add depth to the understanding of evolution, an example is a recent discovery of a creature they named Tiktaalik. The Tiktaalik was uncovered to be a transitional animal between shallow-water fishes and limbed animals. The creature supports the idea that it emerged from both mammals and reptiles, suggesting that the two are related. These findings support prediction of evolution, contradicting the belief that God
The reading states that the researchers deliberately broke open the Tyrannosaurus rex's leg bone and found remains of blood vessels, red blod cells, and collagen matrix and provides three reasons of support. However, the professor states that it's skeptical that T.rex has all of structures and refutes each of the authors' reasons.
Ancient artifacts are abandoned everywhere, Inviting hallow bones from anywhere. Gray souls infested from the East to the West Mystic bones are now dressed, Set to dismantle and to fest. Hollow bones are beating 100 hammers per minute Performing as hollow phantom infinite. Set to overtake the boulevard every minute Skeletons infest those merciless
Switek, Brian (2015, June 16) Scrappy Fossils Yield Possible Dinosaur Blood Cells. Retrieved from http://news.nationalgeographic.com/
Second of all, the writer of the reading passage mentions that dinosaurs had legs under their body and might are able to run, and this point shows that dinosaurs were endotherms. In contrast, the lecturer challenge this idea by the opinion
Second, the reading thinks because scientists cannot tell with certainty what part of the dinosaur's anatomy the structure were, the fine lines may be frills.
Although both the lecturer and the writer try very hard to explain whether dinosaurs are endotherms or not, their standpoints are clearly different. Because dinosaurs’ fossils were found in such cold weather in polar regions, the lecturer states that those fossils might be the migrated or hibernated dinosaurs during the winter
In this article it explains how they found the pigments inside dinosaur eggs that give them their greenblue coloring. Upon investigation, they still had the pigments of colors in them. Pigments are difficult to break down, but how could the pigments remain if the dinosaur eggs were millions of years old? In a
Based on color, the cartilage was whitish in color while the bone was cream colored. The cartilage was relatively more flexible than the bone. On composition, bone is made up of calcium while cartilage is made up of hyaline materials. Upon piercing with a knife, the bone is resistant to piercing. On application of more force, it cracks and breaks unevenly as compared to the cartilage that is less resistant to piercing and was cut clean through upon application of a relatively lesser