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    GENBIO2-Week 2

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    Ashanti Garcia
    The document summarizes a student's assignments for Week 2 of their General Biology 2 course. It includes multiple choice and short answer questions testing the student's knowledge of topics covered in Lessons 2.1 on the history of life on Earth and 2.2 on the mechanism of evolutionary change. The assignments assess understanding of concepts like the geologic time scale, major eras and periods of Earth's history, mass extinctions, and dominant animal life forms of different eras. The student is also tasked with completing a table linking concepts of evolutionary change like natural selection and genetic drift to keywords and drawings, as well as sketching what Earth and its life forms may have looked like during the Cenozoic era.

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    GENBIO2-Week 2

    Uploaded by

    Ashanti Garcia
    26 views7 pages
    The document summarizes a student's assignments for Week 2 of their General Biology 2 course. It includes multiple choice and short answer questions testing the student's knowledge of topics covered in Lessons 2.1 on the history of life on Earth and 2.2 on the mechanism of evolutionary change. The assignments assess understanding of concepts like the geologic time scale, major eras and periods of Earth's history, mass extinctions, and dominant animal life forms of different eras. The student is also tasked with completing a table linking concepts of evolutionary change like natural selection and genetic drift to keywords and drawings, as well as sketching what Earth and its life forms may have looked like during the Cenozoic era.

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    The document summarizes a student's assignments for Week 2 of their General Biology 2 course. It includes multiple choice and short answer questions testing the student's knowledge of topics covered in Lessons 2.1 on the history of life on Earth and 2.2 on the mechanism of evolutionary change. The assignments assess understanding of concepts like the geologic time scale, major eras and periods of Earth's history, mass extinctions, and dominant animal life forms of different eras. The student is also tasked with completing a table linking concepts of evolutionary change like natural selection and genetic drift to keywords and drawings, as well as sketching what Earth and its life forms may have looked like during the Cenozoic era.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    26 views7 pages

    GENBIO2-Week 2

    Uploaded by

    Ashanti Garcia
    The document summarizes a student's assignments for Week 2 of their General Biology 2 course. It includes multiple choice and short answer questions testing the student's knowledge of topics covered in Lessons 2.1 on the history of life on Earth and 2.2 on the mechanism of evolutionary change. The assignments assess understanding of concepts like the geologic time scale, major eras and periods of Earth's history, mass extinctions, and dominant animal life forms of different eras. The student is also tasked with completing a table linking concepts of evolutionary change like natural selection and genetic drift to keywords and drawings, as well as sketching what Earth and its life forms may have looked like during the Cenozoic era.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 7

    QUARTER 3 – GENERAL BIOLOGY 2

    NAME: ASHANTI P. GARCIA GRADE AND SECTION: 11 – STEM D


    TEACHER: MA’AM RAQUEL CASTRO SCORE:
    WEEK 2 TOPICS:
    LESSON 2.1 HISTORY OF LIFE ON EARTH
    LESSON 2.2 MECHANISM OF EVOLUTIONARY CHANGE

    WEEK2WRITTENWORK

    I. MULTIPLE CHOICE TEST (10 POINTS)

    ___D___1. How many years our planet earth has been around?

    A. 2,000 C. 4,000

    B. 46,000,000 D. 4,600,000,000

    ___B___2. Which if the following forms when a fossil mold is filled?

    A. Carbon film

    B. Fossil Casts

    C. Ichnofossils

    D. Molds

    __D____3. What is a fossil?

    A. An igneous rock

    B. Something that is dead

    C. Something that is living

    D. A preserved remains or impression of a living organism such as plant, animal, or insect

    _B_____4. Which of the following is the correct order from oldest to most recent era.

    A. Cenozoic → Mesozoic→ Paleozoic

    B. Paleozoic→ Mesozoic→ Cenozoic

    C. Mesozoic→ Cenozoic→ Paleozoic

    D. Cambrian→ Mesozoic→ Cenozoic

    __D____5. Which era means “Ancient life” because geologists thought this was the oldest rock
    that existed?
    A. Cambrian

    B. Cenozoic

    C. Mesozoic

    D. Paleozoic

    II. SHORT ANSWER TEST (50 POINTS)

    1. Arrange the divisions in the Geologic Time Scale (GTS) from shortest to longest.

    Epoch --- Periods --- Era --- Eons // Ages --- Epoch --- Periods --- Era --- Eons

    2. Arrange the four eras in order from longest to shortest duration.

    Precambrian, Paleozoic, Mesozoic, Cenozoic

    3. During which era did the first life forms exist and what were they like?

    Precambrian, they were prokaryotic single-celled organisms.

    4. How many millions of years went by after Earth formed before the first life forms
    appeared?

    Around 500 millions years ago

    5. What is a “mass extinction”?

    A period in which a large proportion of all known living species become extinct and It is thought
    to be the result of factors such as a catastrophic global event or widespread environmental
    change that occurs too quickly for most species to adapt.

    6. What relationship do you see between mass extinction and the start of the Mesozoic
    and Cenozoic eras?

    A mass extinction occurred at the start of each era.

    7. What were the dominant animals of the Mesozoic Era?

    Mesozoic era’s predominant animals were the reptiles because of their ability to withstand drier
    climates.

    8. What are the dominant animals of the Cenozoic Era?

    During Cenozoic era there were cave lions, cave bears, saber-toothed cats, deer, rhinoceroses
    and mammoths were prevailing species of the Quaternary period.

    9. What are the implications of mass animal extinctions that have occurred in
    evolutionary history.
    The mass extinctions reduce diversity by killing off specific lineages, and with them, any
    descendent species they might have given rise to, in way that mass extinction prunes whole
    branches of life.

    10. How is geological time scale divided?

    It subdivides namely eons, eras, periods, and epochs.

    III. KEYWORD AND DRAW METHOD (25 POINTS)


    You will accomplish the given table below:

    CONCEPT/MECHANISM KEYWORD OWN SKETCH/DRAWING TO ILLUSTRATE THE


    OF EVOLUTIONARY RELATED TO CONCEPT (3POINTS)
    CHANGE THE
    CONCEPT
    (2POITS)
    1. Artificial Selection Breeding

    2. Natural Selection Genetic


    Composition
    3. Genetic Drift Mechanism

    4. Mutation Chromosomes

    5. Recombinant of Genes Cloning

    WEEK2PERFORMANCETASK
    LET’S DOODLE IT!

    YOU will sketch a snapshot of the Earth as it would have looked like at a certain period and the
    different life forms that evolved during those times.

    The Cenozoic era is also known as the Age of Mammals due to the extinction of many groups of giant
    mammals, which allowed smaller species to thrive and diversify because their predators no longer
    existed. Due to the large time span covered by the period, it is preferable to discuss the animal population
    by the era's milestone rather than in broad strokes. The quaternary period was dominated by cave lions,
    sabre-toothed cats, cave bears, giant deer, woolly rhinoceroses, and woolly mammoths. Plant life had a
    chance to thrive during the Cenozoic era without the dinosaurs. Almost every plant alive today has its
    origins in the Cenozoic era. During this era, plants and animals look most like those on Earth today.

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