[Campbell Biology P.650] According to the 'SAR is a highly diverse group of protists defined... | Practice Question

According to the 'SAR is a highly diverse group of protists defined by DNA similarities' section and the accompanying diagram, which of the following groups are considered major clades within the SAR supergroup?

  • A: Stramenopiles, Alveolates, and Rhizarians.
  • B: Excavata, Archaeplastida, and Unikonta.
  • C: Diatoms, Forams, and Ciliates.
  • D: Diplomonads, Parabasalids, and Euglenids.

Explanation

The text states: 'These studies found that three major clades of protists—the stramenopiles, alveolates, and rhizarians—form a monophyletic supergroup.' The diagram also clearly shows these as the three main divisions under SAR.