The ________ resemble the ancestor of all animals.

Question

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Choanoflagellates are single-celled organisms that have a collar of microvilli around their flagellum, which is similar in structure to the choanocytes found in sponges. Sponges are considered to be the most primitive animals and their choanocytes are thought to be the closest living relatives to the ancestor of all animals. Therefore, choanoflagellates are often considered to be the closest living relatives of the ancestor of all animals.

The ________ Resemble the Ancestor of All Animals