Which of the following protists are considered the ancestors of sponges?
Correct answer: D. Choanoflagellates
- A. Amoebae
- B. Zooflagellates
- C. Actinopods
- D. Choanoflagellates
Explanation
Ancestors of today's sponges may have been the first truly multicellular animals. That distinction may belong to protists called Choanoflagellates, which are single or multicellular bouquets or spheres of what looks just like the choanocytes inside.
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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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