Congrats! - your lab got a million dollars in funding to hunt for ancient lagoon deposits, and you are in charge of planning the expedition. What are three sedimentary structures or other clues you should be searching for in the field to know you are in a paleo-lagoon environment? Why?
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- Your email address will be recorded when you submit Not roywooten9341@wilsonstudent.net? Switch acco * Required 1. What kind of rock are fossils usua!ly found? * Metamorphic rock Igneous rock Sedimentary rock 2. What is permineralization? When organisms are trapped in tar. NC TESTLet’s see what you already know! For this activity, you are a palaeobiologist interested in reconstructing ancient ecosystems. You have searched the scientific literature and found 5 clues:1. The majority of the field site (~100 km2) is mostly covered with limestone. However, in one area younger mudstone rocks are preserved above the limestone.2. The limestone has many invertebrate fossils including starfish, sea urchins, and coral, but mostly has bivalve shells. 3. The limestone also has vertebrate fossils. Small shark teeth are sometimes found. A single elasmosaurid plesiosaur tooth was discovered. Amazingly, several coprolites (fossilised dung) have fish vertebrae found in them; one coprolite even has a feather inside!4. The mudstone is rich in tiny ‘microfossils’ that include:• Small mammalian teeth • Pollen from 29 different families of flowering plants: the most common families are Caesalpiniaceae (peacock flowers)5. The mudstone also has larger fossils, including:• Pelvic and…The most useful method for dating ancient calcium rich cave deposits would be Group of answer choices A: Argon-Argon Dating B: Paleomagnetic Reversals C: Electron Spin Resonance Dating D: Uranium-Thorium Dating E: Potassium-Argon Dating
- 12:59 PM O A ll ? 33 Title What are the importance of mass extinction over time with emphasis permian Triassic extinction. Write six points.Why do you think it was so important to science when Alfie Wegener and Harry Hess proved their theories of continental drift and sea-floor spreading? Explain your answer in 4-5 sentences! (Writing level 8th grade)12:59 PM O E ll a 33 Title What are the importance of mass extinction over time with emphasis permian Triassic extinction. Write six points.
- Question 21 Use the information in the diagram below to answer the questions. R A \U N. A) Which rock layer is oldest (laid down first), J or K? Explain. B) Did Fault N occur before or after rock layer J was deposited? Explain. C) Which happened first, igneous intrusion M or Fault N? Explain.Which of the following are useful for reconstructing ancient environments? Group of answer choices A: the ice layers found in glaciers B: Oxygen isotope analysis C: Cores taken from ocean sediments D: fossil remains of plants and animals E: All of these answers are trueFact or theory? Organisms that look similar have been observed to have differences when preserved in rocks of different ages.
- Question: Which of the following puts the events in the history of life in the correct order? A- Permian Extinction; Tiktaalik; Pleistocene Megafaunal Extinction; Precambrian Era B- Precambrian Era; Tiktaalik; Permian Extinction; Pleistocene Megafaunal Extinction C- Pleistocene Megafaunal Extinction; Permian Extinction; Precambrian Era; Tiktaalik D- Tiktaalik; Permian Extinction; Precambrian Era; Pleistocene Megafaunal Extinction E- Precambrian Era; Permian Extinction; Tiktaalik; Pleistocene Megafaunal ExtinctionThe earth is about 4.6 billion years old. Based on the formation of seafloor spreading, why do you think that the oldest ocean floor is only about 200 million years old?Hello, I need help with number 3 a, b, & c using the diagram below. Pls & thank you! 3. a) What features does the organism shown above have that indicate that it is our direct ancestor among the Cambrian fauna? 3. b) When the organism shown above was swimming in the Cambrian seas, it was very small compared to the apex predator (Anomalocaris), which was several feet long. What adaptations might the organism shown above have to evade predation by Anomalocaris? 3. c) A famous evolutionary biologist says that “everything in evolution is contingent”, which he explains means that events could always have turned out differently. Do you think that the survival of our direct ancestor is an example of a lucky accident that allowed the later evolution of vertebrates, including us? Why or why not? Photos reference: Futuyma, D. J., & Kirkpatrick, M. (2017). Chapter 17 The History of Life. In Evolution (4th ed., pp. 430-467). Sunderland, Massachusetts: Sinauer Associates.