[Campbell Biology P.800] Based on the introductory text, how does the brain volume of the ea... | Practice Question

Based on the introductory text, how does the brain volume of the earliest hominins compare to that of chimpanzees and modern humans?

  • A: Similar to modern humans and much larger than chimpanzees.
  • B: Similar to chimpanzees, while modern humans have significantly larger brain volumes.
  • C: Much larger than both chimpanzees and modern humans.
  • D: Similar to chimpanzees and also similar to modern humans.

Explanation

The first paragraph of 'How Has Brain Volume Changed Over Time in the Hominin Lineage?' states: 'the brain volume of the earliest hominins ranged between 300 and 450 cm³, similar to the brain volume of chimpanzees. The brain volumes of modern humans range between 1,200 and 1,800 cm³.' This clearly indicates that early hominin brain volume was similar to chimpanzees but much smaller than modern humans.