Use the following figure to answer questions 2 and 3. mya - million years ago 1,400 mya -1 bilkan YINS Iga 4,600 mya: Formation of Burth 4000 mya Present day 3,500 mya Okdest known fosl 3,000 myn 2,000 mya | 2000 mya: First multiceled organiams 1,000 myu 2. How old is the oldest known fossil? 3. How much time passed between the Earth's formation and the appearance of the first multicellular organ- ism?
Q: Question 1: Mass extinction ocurred on the following time and era except for: A. Mesozoic B.…
A: Question 1) Mesozoic era : At the end of this era the about 70% of all plants and animals were…
Q: s constant e.g. half of the remaining Carbon-14 breaks down every 5730 years. Use th nd compute the…
A: Carbon 14 is used for detecting the age of fossils by the process of carbon dating. Carbon-14 is…
Q: Carbon-14 dating works for fossils up to about 75,000 years old;fossils older than that contain too…
A: Radiocarbon dating is a method which will help us estimate the age of objective for carbon based…
Q: Using tables 2.1 and 2.2 as references, fill out the following table. The first item is given as an…
A: Geological time scale Geological time scale is a representation of Earth's history.
Q: The researchers found that the Neanderthal fossil had approximately0.0078 as much 14C as found…
A: a. The half live can be calculated using the formula- N=N0(1/2)n where, n = number of half lives,…
Q: Which of the following statements is correct about index fossils? O a. They are a group of…
A: 1. B. They are the fassil remains of an organism that lived in a particular geologic age, used to…
Q: Question: Which of the following puts the events in the history of life in the correct order?
A: Extinction The process in which particular organism disappear from the earth and nowhere to be…
Q: Which idea stems from the theory of evolution? - a. The earth is relatively young. b. Each…
A: Evolution is change in the heritable credits of normal peoples over reformist ages. These ascribes…
Q: Match each of the following key events in the history of Earth and life with its approximate date,…
A: The evolution is an important during thus event many population was appered on earth and many…
Q: Which of these geologic time periods have been defined by a major extinction event? Select all that…
A: Ans. Mass extinction is the episode in which, during relatively short geological times, a large…
Q: Match the terms with the most suitable description. ____ lineage a. measured…
A: Evolution is the accumulation of genetic variations.
Q: Which of the mass extinctions appears to have removed the most animal groups? How long ago did this…
A: BASIC INFORMATION EXTINCTION It is basically the death of the present organism living in a…
Q: QUESTION 2 Approximately when did living things first appear on land? O 4.75 billion years ago O 3.5…
A: The age of the earth is estimated to be about 4.54 billion years. When the earth was formed for the…
Q: On the geologic time scale, life originated in the_____ . a. Archean c. Phanerozoic b. Proterozoic…
A: The geologic time scale is a chronological dating system that classifies geological strata into…
Q: A fossil is found to contain the radioactive parent and daughter isotopes uranium 235U, and lead…
A: INTRODUCTION The determination of the relative age of a rock is predicated on the principle of…
Q: Four of the following statements about fossils found on the island of Flores are true. Which one is…
A: Fossil found on the island of Flores were scientifically named Homo floresiensis. They were…
Q: Fossils are remains of ancient organisms found in the rocks are categorized depending on their age.…
A: The remnants and evidence of ancient species are known as fossils. The preserved remnants or traces…
Q: Which of the following pieces of evidence prompted researchers to abandon the hypothesis that a…
A: Iridium is an element belong to the platinum group and is the rarest and most densest element. Its…
Q: Which era is furthest in the past? O A. Cenozoic O B. Mesozoic O C. Paleozoic O D. Precambrian
A: According to the timeline of the evolutionary history of life, all present-day organisms have been…
Q: Based on the figure below, what is the number of turnovers in stage B? D 34 24 16 4 Geological…
A: Species turnover is defined as the number of species in a specific geological age which pass over to…
Q: Relative-Age Dating Absolute-Age Dating Younger 440 mya 480 mya 520 mya 545 mya Older 2. The dates…
A: Ans: C: Igneous rock layers
Q: radiometric dating
A: two isotopes of uranium are used for radiometric dating . uranium -238 decays to form lead -206 with…
Q: What argument convinced most scientists in the 1800s that Earth was more than 6,000 years old? O The…
A: Introduction All life on earth began from the universal last common ancestor which lived 3 to 4…
Q: According to the most recent evidence, the first modern Homo sapiens evolved in Africa around…
A: Homo sapiens are the most recent species of human lineage. They were evolved in sub Saharan Africa.…
Q: Modern humans crossed a landbridge from Asia into North America during a glacial period about 20,000…
A: Hominins are primates that belong to family Hominidae. It includes bonobos, chimpanzees and humans.
Q: Which is true concerning how fossils are used as evidence? O A. Fossils cannot be compared to one…
A: Fossil can be used as evidence to study ancient life and organism.
Q: - What method can scientists use to determine when the fossil above appeared on Earth? SC.7.L.15.1
A: Fossils should be studied in terms of time and occurrence for understanding evolutionary phenomena.…
Q: The scale on the bottom indicates the estimated timing of nodes (Mya = million yrs ago). Trioceros…
A: Introduction: Monophyletic is a Greek term which suggests organisms or species belonging to a single…
Q: Organism A lived from 410 to 60 million years ago. Organism B lived from 200 to 100 million years…
A: In case of human or animal remains from the past 50,000 years, researchers focus at levels of carbon…
Q: Match the forms of life below with the earliest (approximate) time that it existed. Note: the earth…
A:
Q: Which is true concerning how fossils are used as evidence? A. Fossils cannot be compared to one…
A: Answer: Introduction: Fossils are produced in many diverse ways, but that are widely produced at the…
Q: The largest mass extinction on record is the mass extinction event. O Late Permian O Late…
A: According to law of superposition within a sequence of layer of sedimentary rock the oldest layer is…
Q: Which of the following do not provide evidence that a meteor strike was a partial cause of the…
A: About 65.5 million years ago KT extinction event occurred which wiped off the dinosaurs from the…
Q: Which of the following events did NOT occur during thePrecambrian?a. Formation of the ozone layerb.…
A: Introduction The Precambrian Period, which predates the current Phanerozoic Eon, is the earliest…
Q: Which is true concerning how fossils are used as evidence? O A. Fossils cannot be compared to one…
A: Evolution is a process of gradual changes in the genetic composition of an organism based on the…
Q: D Question 4 Which mass extinction led to the disappearance of the dinosaurs? O Triassic O…
A: The recurrent rise and disintegration of ice sheets and glaciers driven by the Milankovitch cycles,…
Q: Fossil discoveries from East Africa have established the clear presence of Homo erectus by…
A: Answer is 2 mya. Fossil discoveries from East Africa have established the clear presence of Homo…
Q: Archaic Homo sapiens were present approximately 400,000 - 125,000 years before present. 2.5…
A: Archaic Homo sapiens were present approximately 400,000 to 125,000 years ago.
Q: Scientists are examining the possible role of a large asteroid in the cretaceous mass extinction…
A: Introduction : Small, airless rocky bodies revolving around the sun between the orbits of Mars and…
Q: Birds Primates Rodents Fish Amphibians Reptiles Hair / fur Egg shells Amniotic egg Four limbs…
A: Introduction :- According to the central idea of biological classification , all life-forms that are…
Q: List three locations where the building blocks of Earth’s first lifemay have formed
A: The biological event through which life has originated from non-living matter, like simple organic…
Q: The Mesozoic Era is referred to as the: * O Age of Ages Age of Reptiles O Age of Arthropods O Age of…
A: Biodiversity is the which describes the different varieties of organisms or living forms on the…
Q: Based on the fossil record, when did hominins first appear in Africa? Group of answer choices ~ 12…
A: A fossil is a preserved remains of animals and plants that are buried in sediments. It is formed…
Q: example. Table 10: Some Important Events in Geologic Time Era Mesozoic Period Triassic Event Eon…
A: This table is based on the time line of genetics. Various animals and plants came into existence…
Q: The graph shows biological diversity through time, from the early Permian through the late Triassic.…
A: The earth's geological scale is divided into various eras starting with the formation of the earth…
Q: A fossil believed to be the most recent common ancestor between housecats and ions is radio-dated to…
A: It has been studied and proved that DNA relatedness amongst the species is directly linked to…
Q: Approximately when did life first appear on land A. 500 million years ago B. 2 billion years ago…
A: Question - Approximately when did life first appear on land A. 500 million years ago B. 2 billion…
Q: 48. Homo erectus was present approximately 4.5 – 1.0 million years before present. 2.5 – 1.8…
A: Homo sapiens has been around 400,000 years and shows the ability to survive in diverse environmental…
Q: A. Direction: Choose the letter of the correct answer and write the letter only on the space…
A: 1. Answer of question 1 is right 2.Answer of question 2 is wrong cenozoic era is the age of mammals…
Step by step
Solved in 2 steps
- The Cenozoic EraAs you do the lab, fill in the last two columns for the Paleocene through the Miocene Epoch Dates Primate Event Species Holocene 10 kya - present Pleistocene 2.5 mya – 10 kya Pliocene 5 – 2.5 mya Miocene 23-5 mya Oligocene 34-23 mya Eocene 55-34 mya Paleocene 65-55 myaBased on the fossil record, when did hominins first appear in Africa? Group of answer choices ~ 12 kya ~ 6 mya ~ 12 mya ~ 2 mya ~ 6 kyaRelative-Age Dating Absolute-Age Dating Younger 440 mya 480 mya 520 mya 545 mya Older 2. The dates shown in the diagram above refer to the ages of SC.7.L.15.1 A originàl material. B trace fossils. igneous rock layers. O sedimentary rock layers. Comentiti
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 29 27 28 30 330 29 29 30 Based on the given figure, answer the following questions (Note: BYA=Billion Years ago; MYA= Million years ago) The oldest eukaryote might be dated back to? Each day represents how many years? When did the first prokaryotic fossil exist? When did photosynthesis first emerged? The multicellular organisms appeared? ~1.5 BYA ~2.5 BYA ~10 BYA ~3.5 BYA ~150 MY ~50 MY ~1 MY ~4.5 MYA ~ 10 MYA ~1 BYAFor this activity, you will be reviewing the geological time scale in the module readingassignment from the Geological Time chapter in the PRI Digital Atlas of Ancient Life –online textbook and the Earth History chapter from the OER Commons Earth ScienceTextbook. Use the images of the geologic time scales in your readings to help you makeyour Geologic Time Scale concept sketch nstructions:Sketch and label a geologic time scale. Include dates of the following events in EarthHistory on your time scale in the appropriate time period (you may have to look these up onthe internet but most are listed in your readings). First appearance of free oxygen in the atmosphere Earliest fossils Oldest animal fossils Great Dying Extinction (worst mass extinction at end of the Permian Period) – alsoexplain possible causes of this extinctionArchaeopteryx sp. appeared First Flowering PlantsTyrannosaurus rex appeared K-T Extinction event (Dinosaurs died out) – also explain possible causes of…The researchers found that the Neanderthal fossil had approximately0.0078 as much 14C as found originally in the atmosphere. (a) Usingthe numbers on your graph, determine how many half-lives havepassed since the Neanderthal died. (b) Using your 14C calibration onthe x-axis, what is the approximate age of the Neanderthal fossil inyears (round off to the nearest thousand)? (c) Approximately whendid Neanderthals become extinct according to this study? (d) Theresearchers cite evidence that modern humans (H. sapiens) becameestablished in the same region as the last Neanderthals approximately 39,000–42,000 years ago. What does this suggest aboutthe overlap of Neanderthals and modern humans?
- Earth is about 4.5 billion years old. In order to characterize the events that happened in this very long time scale, scientists have developed the geologic time scale. Here, the age of Earth is divided into (1), which in turn divided into (2), and are further subdivided into (3). The geologic time scale is so-called since the different subdivisions are based on the fossil record.Match each of the following key events in the history of Earth and life with its approximate date, in million of years ago (mya). Options:4600mya,1000mya,4000mya,200mya,6mya,300mya,2500mya,635mya,130mya,150mya,2000mya,500mya,400mya,541mya, 0.15mya First Dinosaurs and mammals First Cell First multicellular organism First amphibians Increase in atmospheric oxygen First Reptiles First hominis Cambrian explosion First birds Homo sapiens (modern humans) First fish Formation of Earth First Animals Rise of flowering plants First eukaryotic cellThe oldest Homo ergaster remains from East and West Lake Turkana are [ Select ] years old. (this is what we consider to be the earliest date of Homo erectus)
- nolhlond to sonsblud mont sqrienols What's More Activity 3. Deepening The Concepts Directions: Answer the following questions. 1. How does (a) relative dating and (b) absolute/radioactive dating determine the age of fossils? 2. How does embryology provide evidence for evolution? 3. How do homologous and vestigial structures provide evidence for evolution? 4. What could be possible for some species belonging to the same family to be presently living in various locations on Earth? You can further support your answer with an example. Scoring Rubric 4 noints intsUsing tables 2.1 and 2.2 as references, fill out the following table. The first item is given as an example. Table 2.6: Some Important Events in Geologic Time Event Eon Era Period Epoch Age of Reptiles begins Phanerozoic Mesozoic Triassic ____ Beginning of the Age of Mammals Early humans first appear Eukaryotes first appear First living things appear Fish with bony skeletons first appear Formation of Pangaea Formation of present-day continents Land plants first appear Modern humans first appear5. Complete the following timeline, which lists the significant evolutionary events in Earth's past. 4,500 mya 4,000 mya 3,500 mya 3,000 mya 2,500 mya 2,000 mya 1,500 mya 1,000 mya 500 mya PRESENT DAY