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In 2010, the Soufriere Hills volcano on the Caribbean island of Montserrat erupted violently, spewing huge clouds of ash and gases into the sky. Explain how the volcanic eruptions at the end of the Permian period and the formation of Pangaea, both of which occurred about 252 million years ago, set in motion events that altered evolutionary history.
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Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
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- https://youtu.be/SkeNMoDlHUU?si=AwIDdGlbpS69KBVe (Summarize it in a bullet form and send the answer here based on the given questions) Here are the following questions: 1. Discuss the major events in the history of life on earth, starting from the origin of life up to the present day, highlighting key evolutionary developments and transitions. 2. What is the role of mass extinctions in shaping the history of life on Earth? How do these events influenced biodiversity and evolutionary trajectories?arrow_forward1) Does the fossil record indicate that life first appeared in the water or on the land? WATER or LAND 2) Does the fossil record indicate that invertebrates (trilobites) and vertebrates (fish) evolved during the same geological period? YES or NO 3) Does the fossil record indicate that birds evolved from mammals or reptiles? MAMMALS or REPTILES 4) The fossil record indicates that hominids evolved from an ancestral hominoid approximately? 4-5 million years ago or 1-2 million years ago What kinds of organisms appear earliest in the fossil record? PROKARYOTES or EUKARYOTESarrow_forwardIn the early nineteenth century, the French scientist Georges Cuvier provided conclusive evidence of the extinction of species on Earth. Although Cuvier correctly asserted that a series of catastrophes led to these extinctions, he could not provide a testable explanation of the source of the new animals and plants that appeared after the extinction of older forms. How would you argue that modern evolutionary theory provides an explanation for the proliferation of new forms of life after mass extinctions?arrow_forward
- The great apes made their first appearance in the fossil record between 23 and 2.6 MYA, which: represents the starting and ending dates for the Paleogene Period represents the starting and ending dates for the Cretaceous Period represents the starting and ending dates for the Jurassic Period represents the starting and ending dates for the Neogene Period represents the starting and ending dates for the Triassic Periodarrow_forwardWe live in the Cenozoic era, and scientists know more about this era and the epochs it’s divided into than any other time period. Why is this? A. We know more about the Cenozoic era because this is the only era that has had a wide diversity of species living on Earth. B. We know more about the Cenozoic era because this is the most recent time period in the history of the Earth, and we have more information available to study. C. We know more about the Cenozoic era because the planet’s poles reversed magnetic fields at the beginning of this era. D. We know more about the Cenozoic era because fossils don’t exist to document previous eras.arrow_forwardImagine you are the head of a newly formed NASA Interplanetary Paleontology Department! Based on preliminary observations of a nearby planet (listed below), do you expect fossils to be in high or low abundance? Provide three evidence-based arguments to justify your choice, identifying the type of fossil record bias associated with each. Preliminary Observations: Volcanic eruptions and the formation of rift valleys and active subduction zones are regular occurrences on this planet. Algae and many soft-bodied animals are found in the oceans. A few leafy plants and a diversity of insect- and scorpion-like animals dominate the land at low densities. You can make the following assumptions: 1. The planet is of similar age and environmental conditions to Earth 2. Decomposition and other mechanisms relevant for fossilization occur on this planet as they do on Earth 3. Environmental conditions, species diversity, and population abundances in the past remained very similar to what is present now…arrow_forward
- 9) Rocks containing fossil evidence have been found in Canada suggesting how life on Earth evolved. What about the rocks led to this belief? A) They contained graphite, a from of pure carbon. B) They contained fossil evidence of human remains. C) They were metamorphic rocks with traces of water. D) They were extrusive rocks that came from the volcanic vents. Not Gradedarrow_forwardIdentify each of the following as an example of MICROEVOLUTION or MACROEVOLUTION.Then,state whether it supports the theory of gradualism or punctured equilibrium.(a) The Cambrian explosion(a period of rapid evolutionary change where many complex organisms evolved).(b)The evolutionary change of animals and terrestrial plants.(c)beetles with a GREEN sheen are more prevalent than beetles with a BLACK sheen.arrow_forward-How long is the time span between the appearance of free atmospheric oxygen and evidence of complex (multicellular) forms? -How much time is there between complex forms and the Cambrian Explosion?arrow_forward
- please see attachedarrow_forwardPlace the following events in the order in which they are thought to have occurred in early evolution of life. the ability to produce proteins from genetic material the ability to use O2 as an electron acceptor for producing cellular energy the formation of heritable information (RNA) the ability to use light energy to fix CO2arrow_forwardPlease answer allarrow_forward