Choanoflagellates resemble to collar cells in

Correct answer: A. Sponges

  • A. Sponges
  • B. Cnidarians
  • C. Ciliates
  • D. Actinopods

Explanation

Choanoflagellates are single-celled organisms that have a distinctive structure featuring a collar of microvilli surrounding a single flagellum. This structure is remarkably similar to the choanocytes (collar cells) found in sponges, which also use a similar mechanism to filter food particles from the water. This similarity suggests a close evolutionary relationship between choanoflagellates and sponges. The other options, such as cnidarians, ciliates, and actinopods, do not share this specific cellular structure.

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About Kingdom Protista

Kingdom Protista contains mainly unicellular eukaryotes, although some forms are colonial or multicellular, with varied nutritional and reproductive methods. Questions examine protozoans, algae and examples such as Amoeba, Paramecium and Euglena, while distinguishing protists from prokaryotes, fungi and true plants.

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