Lesson 3: Domains And Kingdoms

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  • 1/10 Questions

    Which of the following is true about animals?

    • Animals are eukaryotes.
    • Animals are autotrophic.
    • Animals are unicellular.
    • Animal cells do not contain nucleic acids.
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Lesson 3: Domains And Kingdoms - Quiz

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  • 2. 

    The dense area of a cell that contains nucleic acids is the ________

    Explanation
    The dense area of a cell that contains nucleic acids is the nucleus. The nucleus is a membrane-bound organelle found in eukaryotic cells. It houses the cell's genetic material, including DNA and RNA, which are the nucleic acids responsible for storing and transmitting genetic information. The nucleus plays a vital role in regulating gene expression and controlling cell functions. It is surrounded by a nuclear envelope that separates it from the rest of the cell, allowing for the protection and organization of the genetic material within.

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  • 3. 

    Organisms belonging to which kingdom are all autotrophs?

    • Fungi

    • Plants

    • Protists

    • Animals

    Correct Answer
    A. Plants
    Explanation
    Plants are the organisms belonging to the kingdom that are all autotrophs. Autotrophs are capable of producing their own food through the process of photosynthesis, using sunlight, water, and carbon dioxide. Plants have specialized structures called chloroplasts that contain chlorophyll, which enables them to capture sunlight and convert it into energy. This ability to produce their own food distinguishes plants from other organisms such as fungi, protists, and animals, which are not autotrophs and rely on external sources for their nutrition.

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  • 4. 

    Most members of the ________ kingdom feed by absorbing nutrients from dead or decaying organisms.

    Correct Answer
    Fungi
    Explanation
    Fungi is the correct answer because they are known for their ability to obtain nutrients by absorbing them from dead or decaying organisms. Fungi play a crucial role in the ecosystem as decomposers, breaking down organic matter and recycling nutrients back into the environment. This feeding method is different from other kingdoms, such as plants that use photosynthesis or animals that consume other living organisms.

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  • 5. 

    In the modern system of classification, the three domains are Bacteria, Archaea, and  ________

    Correct Answer
    Eukarya
    Explanation
    In the modern system of classification, the three domains are Bacteria, Archaea, and Eukarya. Eukarya is the correct answer because it represents the domain that includes all eukaryotic organisms, which are characterized by having cells with a nucleus and membrane-bound organelles. This domain encompasses a wide range of organisms, including plants, animals, fungi, and protists.

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  • 6. 

    Bacteria and archaea are placed in separate kingdoms because 

    • They both are unicellular

    • Their structure and chemicals makeup differs

    • Bacteria are autotrophs and archaea are heterotrophs

    • Bacteria are prokaryotes and archaea are eukaryotes

    Correct Answer
    A. Their structure and chemicals makeup differs
    Explanation
    Bacteria and archaea are placed in separate kingdoms because their structure and chemical makeup differs. This means that they have distinct characteristics and properties that set them apart from each other. These differences in structure and chemical composition are significant enough to warrant their classification into separate kingdoms.

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  • 7. 

    Which of the following is NOT true about bacteria?

    • Bacteria can be autotrophic or heterotrophic.

    • Bacteria are prokaryotes.

    • Bacteria have a cell nucleus.

    • Bacteria are unicellular.

    Correct Answer
    A. Bacteria have a cell nucleus.
    Explanation
    The statement "Bacteria have a cell nucleus" is not true because bacteria are prokaryotes, which means they lack a true nucleus. Prokaryotic cells, including bacteria, do not have a membrane-bound nucleus like eukaryotic cells. Instead, their genetic material is located in a region called the nucleoid, which is not enclosed by a nuclear membrane.

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  • 8. 

    An organism whose cells lack a nucleus is called a(n)  ________

    Correct Answer
    prokaryote
    Explanation
    An organism whose cells lack a nucleus is called a prokaryote. Prokaryotes are single-celled organisms that do not have a membrane-bound nucleus. Instead, their genetic material is located in the cytoplasm. This is in contrast to eukaryotes, which have cells that contain a nucleus where the genetic material is stored. Prokaryotes include bacteria and archaea, and they are known for their simplicity and ability to adapt to various environments.

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  • 9. 

    Marine dinoflagellates and seaweed are members of the ________ kingdom. 

    Correct Answer
    protist
    Explanation
    Marine dinoflagellates and seaweed are members of the protist kingdom because they are both eukaryotic organisms that do not fit into any other kingdom classification. Protists are a diverse group of organisms that can be unicellular or multicellular, and they can have plant-like, animal-like, or fungus-like characteristics. Marine dinoflagellates are unicellular protists that are known for their ability to photosynthesize and their role in marine ecosystems. Seaweed, on the other hand, is a multicellular protist that is similar to plants in appearance and ecological function. Therefore, both marine dinoflagellates and seaweed are classified as protists.

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  • 10. 

    Multicellular organisms that make their own food belong to the ________ kingdom.

    Correct Answer
    Plant
    Explanation
    Multicellular organisms that make their own food belong to the Plant kingdom. This is because plants have the ability to carry out photosynthesis, a process in which they convert sunlight, water, and carbon dioxide into glucose and oxygen. This ability to produce their own food sets plants apart from other kingdoms, such as Animal, Fungi, and Protist. Plants play a crucial role in the ecosystem as primary producers, providing food and oxygen for other organisms.

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  • Mar 21, 2023
    Quiz Edited by
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  • Sep 14, 2020
    Quiz Created by
    Jenter_6
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