[Campbell Biology P.758] Based on Figure 33.35 and the 'Pancrustaceans' section, which of th... | Practice Question

Based on Figure 33.35 and the 'Pancrustaceans' section, which of the following groups together form the clade Pancrustacea?

  • A: Insects and Myriapods
  • B: Insects, Remipedians, and Other crustaceans
  • C: All arthropods except Chelicerates
  • D: Crustaceans only (Remipedians and Other crustaceans)

Explanation

The 'Pancrustaceans' section explicitly states that 'together the insects and crustaceans form a clade, which systematists have named Pancrustacea'. Figure 33.35 illustrates this relationship, showing Insects, Remipedians a crustacean group , and Other crustaceans as branches deriving from a common ancestor that collectively represent Pancrustacea, separate from Myriapods and Chelicerates.