[Campbell Biology P.642] Based on the "KEY CONCEPTS" section and the diagram illustrating th... | Practice Question

Based on the "KEY CONCEPTS" section and the diagram illustrating the supergroups of eukaryotes, which of the following statements is accurate?

  • A: Excavates are characterized by their close evolutionary relationship to fungi and animals.
  • B: SAR is a highly diverse group primarily defined by their unique flagella.
  • C: Red algae and green algae, which are part of the Archaeplastida supergroup, are the closest relatives of plants.
  • D: Unikonts consist primarily of single-celled organisms, and they gave rise to the earliest photosynthetic eukaryotes.

Explanation

Key Concept 28.4 states that 'Red algae and green algae are the closest relatives of plants'. The diagram on the right shows 'Archaeplastida' as one of the four highly diverse supergroups, implying it includes the lineage that gave rise to plants, which is consistent with the red and green algae being part of this supergroup.