[Campbell Biology P.801] Which of the following statements about Homo ergaster is supported ... | Practice Question

Which of the following statements about Homo ergaster is supported by the provided text?

  • A: They developed and used sophisticated stone tools.
  • B: They had long fingers, indicating a strong adaptation for tree-climbing.
  • C: Their primary diet was similar to australopiths, consisting mostly of plant material.
  • D: They were characterized by an increase in sexual dimorphism compared to Australopithecus afarensis.

Explanation

The text states that Homo ergaster fossils 'have been associated with more sophisticated stone tools,' directly supporting option A. The other options are contradicted by information provided in the text regarding their locomotion, diet, and sexual dimorphism.