[Campbell Biology P.708] Which of the following statements accurately describes the Opisthok... | Practice Question

Which of the following statements accurately describes the Opisthokont clade based on the provided text and Figure 31.8?

  • A: It includes fungi, plants, and algae, all characterized by anterior flagella.
  • B: It is a monophyletic group comprising fungi, animals, and their protistan relatives, named for the posterior location of the flagellum.
  • C: Nucleariids are more closely related to animals than to fungi within this clade.
  • D: Multicellularity in animals and fungi evolved from a shared multicellular ancestor within the Opisthokonts.

Explanation

The text explicitly defines Opisthokonts as a monophyletic group consisting of fungi, animals, and their protistan relatives, and clarifies that the name refers to the posterior opistho- location of the flagellum. Other options contain inaccuracies regarding the members, flagellum position, or evolutionary history of multicellularity.