A Unique Animal Diversity Quiz!

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A Unique Animal Diversity Quiz! - Quiz

The ADW was created by Philip Myers, a former biology professor at the University of Michigan, in 1995. The site now contains over 2,150 accounts of animal species along with over 11,500 images and 725 sounds. These numbers will continue to grow as the developers of the website plan to add 250 species by the end of 2017.


Questions and Answers
  • 1. 

    A type of embryonic development in protostomes, in which the planes of cell division that transform the zygote into a ball of cells occur obliquely to the polar axis, resulting in cells of each tier sitting in the grooves between cells of adjacent tiers.

    • A.

      Trochophore larva

    • B.

      Schizoceolous

    • C.

      Radiata

    • D.

      Spiral cleavage

    Correct Answer
    D. Spiral cleavage
    Explanation
    Spiral cleavage is a type of embryonic development in protostomes where the planes of cell division occur obliquely to the polar axis. This results in the cells of each tier sitting in the grooves between cells of adjacent tiers. This pattern of cell division leads to the formation of a spiral arrangement of cells in the early embryo. Spiral cleavage is characteristic of many protostome animals and is different from radial cleavage, which is characteristic of deuterostomes.

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  • 2. 

    The type of development found in protostomes. Initially solid masses of mesoderm split to form coelomic cavities.

    • A.

      Radiata

    • B.

      Radial cleavage

    • C.

      Spiral cleavage

    • D.

      Schzocoelous

    Correct Answer
    D. Schzocoelous
    Explanation
    Schzocoelous development is a type of development found in protostomes. In this type of development, initially solid masses of mesoderm split to form coelomic cavities. This process is different from enterocoelous development, where coelomic cavities form from outpocketings of the archenteron.

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  • 3. 

    Members of the radially symmetrical animal phyla, including cnidarians.

    • A.

      Radiata

    • B.

      Radial cleavage

    • C.

      Schizocoelous

    • D.

      Trochophore

    Correct Answer
    A. Radiata
    Explanation
    The term "Radiata" refers to a group of animals that exhibit radial symmetry, meaning their body parts are arranged around a central axis. This includes animals from the phylum Cnidaria, such as jellyfish and sea anemones. These animals typically have a cylindrical or saucer-like body shape, with body parts radiating out from a central point. Radial symmetry allows for equal access to the environment from all directions, which is advantageous for animals that are sessile or move in a slow, floating manner.

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  • 4. 

    One of two distinct clades within the protostomes. It includes annelids and mollusks.

    • A.

      Lophotrochozoa

    • B.

      Mesoderm

    • C.

      Parazoans

    • D.

      Clades

    Correct Answer
    A. Lophotrochozoa
    Explanation
    Lophotrochozoa is the correct answer because it is one of two distinct clades within the protostomes. This clade includes annelids and mollusks, which are both types of organisms that belong to the Lophotrochozoa group. The other options, such as Mesoderm, Parazoans, and Clades, are not specific to this particular group and do not accurately describe the given information.

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  • 5. 

    Organisms without true tissues (sponges)

    • A.

      Parazoans

    • B.

      Clades

    • C.

      Cleavage

    • D.

      Mesoderm

    Correct Answer
    A. Parazoans
    Explanation
    Parazoans refers to organisms without true tissues, such as sponges. This term is used to categorize organisms that lack specialized cells organized into distinct tissues, unlike higher organisms. Sponges are considered parazoans because they are multicellular but do not possess true tissues like muscles or nerves. Instead, their cells are loosely organized and perform various functions without forming specialized structures.

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  • 6. 

    This term means true animal has tissues

    • A.

      Eumetozoans

    • B.

      Enteroceolus

    • C.

      Endoderm

    • D.

      Lophophore

    Correct Answer
    A. Eumetozoans
    Explanation
    Eumetozoans is the correct answer because this term refers to animals that have true tissues. Eumetozoans are a group of animals that have evolved specialized cells and tissues, allowing for more complex body structures and functions. This distinguishes them from other organisms, such as sponges, which lack true tissues. Therefore, Eumetozoans accurately describes animals that possess tissues.

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  • 7. 

    Supergroup of protostomes; characterized by periodic molting of their exoskeleton. Include the roundworms and arthropods.

    • A.

      Ecdysozoa

    • B.

      Endoderm

    • C.

      Ectoderm

    • D.

      Enteroceolus

    Correct Answer
    A. Ecdysozoa
    Explanation
    Ecdysozoa is the correct answer because it refers to a supergroup of protostomes that share the characteristic of periodically molting their exoskeleton. This group includes roundworms and arthropods. The other options, such as Endoderm, Ectoderm, and Enteroceolus, are not relevant to the given characteristic and do not describe the group of organisms mentioned.

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  • 8. 

    The phylum to which segmented worms belong Earthworms, leeches

    • A.

      Porifera

    • B.

      Cnidaria

    • C.

      Annelida

    • D.

      Nematoda

    Correct Answer
    C. Annelida
    Explanation
    Annelida is the correct answer because it is the phylum to which segmented worms like earthworms and leeches belong. Annelids are characterized by their segmented bodies and have a well-developed coelom. They are found in various habitats, including freshwater, marine, and terrestrial environments. Earthworms play a crucial role in soil fertility and decomposition, while leeches are known for their blood-feeding habits.

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  • 9. 

    Phylum of roundworms Hookworm

    • A.

      Nematoda

    • B.

      Platyhelminthes

    • C.

      Mollusca

    • D.

      Annelida

    Correct Answer
    A. Nematoda
    Explanation
    The correct answer is Nematoda because roundworms belong to the phylum Nematoda. Nematodes are unsegmented worms that have a cylindrical shape and a tough, flexible outer covering. They can be found in a wide range of habitats, including soil, water, and the bodies of plants and animals. Hookworms, which are a type of roundworm, are parasitic worms that commonly infect humans and animals by attaching to the lining of the intestines and feeding on blood. Therefore, Nematoda is the correct phylum for hookworms.

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  • 10. 

    Phylum that includes animals with a notochord, a dorsal nerve cord, and pharyngeal gill slits

    • A.

      Mollusca

    • B.

      Nematoda

    • C.

      Echinodermata

    • D.

      Chordata

    Correct Answer
    D. Chordata
    Explanation
    Chordata is the correct answer because it is the only phylum listed that includes animals with a notochord, a dorsal nerve cord, and pharyngeal gill slits. The notochord is a flexible rod that provides support, the dorsal nerve cord is located along the back and serves as the main nervous system pathway, and the pharyngeal gill slits are used for filter feeding or respiration. Mollusca, Nematoda, and Echinodermata do not possess all of these characteristics.

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