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Invertebrates Knowledge-Based Practice

Biology · Diversity of Life · Biology · Animals

5 Biology practice questions on Invertebrates. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    Which of the following anatomical structures is a specialized feeding organ characteristic of most mollusks that consists of a toothed, chitinous ribbon used to scrape or tear food?

    • A) Parapodium
    • B) Cnidocyte
    • C) Radula
    • D) Malpighian tubule
  2. 2.

    Which of the following cell types is unique to sponges (phylum Porifera) and functions primarily in generating water currents and capturing suspended food particles?

    • A) Choanocytes
    • B) Amoebocytes
    • C) Cnidocytes
    • D) Pinacocytes
  3. 3.

    Which of the following structures is a unique feature of organisms belonging to the phylum Echinodermata that functions in locomotion, gas exchange, and feeding?

    • A) Radula
    • B) Malpighian tubules
    • C) Water vascular system
    • D) Flame cells
  4. 4.

    Which of the following specialized cells are characteristic of organisms belonging to the phylum Cnidaria and function primarily in prey capture and defense?

    • A) Choanocytes
    • B) Cnidocytes
    • C) Flame cells
    • D) Amoebocytes
  5. 5.

    Which of the following features is a defining characteristic of animals classified within the phylum Arthropoda?

    • A) A closed circulatory system with a four-chambered heart
    • B) A radial body plan operated by a water vascular system
    • C) A soft unsegmented body usually enclosed in a calcium-rich shell
    • D) A chitinous exoskeleton accompanied by paired, jointed appendages

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