Worksheet: Human Evolution

In this worksheet, we will practice describing and interpreting the evidence for human evolution.

Q1:

Which of the following hypotheses correctly links brain size and tool development in hominins?

  • AThe larger the brain, the more advanced the tools.
  • BThe larger the brain, the less advanced the tools.
  • CBrain size and tool development are not thought to be linked.

Q2:

Choose the statement that correctly describes how the skull size of hominins has changed over time.

  • AThe skull size of hominins has not changed significantly over time.
  • BThe younger the fossil, the smaller the skull size.
  • CThe older the fossil, the smaller the skull size.

Q3:

Which ancestor of humans existed around 2.4 million years ago?

  • A Homo erectus
  • B Ardipithecus ramidus (Ardi)
  • C Homo sapiens
  • D Homo habilis
  • E Australopithecus afarensis (Lucy)

Q4:

Which ancestor of humans existed around 3.2 million years ago?

  • A Homo habilis
  • B Homo sapiens
  • C Ardipithecus ramidus (Ardi)
  • D Homo erectus
  • E Australopithecus afarensis (Lucy)

Q5:

Which hominin (member of the human lineage) first existed around 195,000 years ago and still exists today?

  • A Homo erectus
  • B Ardipithecus ramidus (Ardi)
  • C Homo habilis
  • D Homo sapiens
  • E Australopithecus afarensis (Lucy)

Q6:

Which ancestor of humans existed around 4.4 million years ago?

  • A Homo erectus
  • B Ardipithecus ramidus (Ardi)
  • C Homo habilis
  • D Homo sapiens
  • E Australopithecus afarensis (Lucy)

Q7:

Homo neanderthalensis were relatives of Homo sapiens and existed from 400,000 to 40,000 years ago. Which of the following is the most commonly accepted reason for why Homo sapiens exist today but Homo neanderthalensis do not?

  • AA cataclysmic event wiped out the entire population of Homo neanderthalensis.
  • BThis is incorrect; Homo neanderthalensis do still exist today.
  • C Homo sapiens were less adapted for the environment and were outcompeted by Homo neanderthalensis.
  • D Homo sapiens were better adapted for the environment and outcompeted Homo neanderthalensis.

Q8:

Which of the following hypotheses correctly links skull and brain size of hominins?

  • AThe larger the skull, the larger the brain.
  • BSkull size and brain size are not thought to be correlated.
  • CThe larger the skull, the smaller the brain.

Q9:

Which ancestor of humans existed around 1.8 million years ago?

  • A Homo erectus
  • B Ardipithecus ramidus (Ardi)
  • C Australopithecus afarensis (Lucy)
  • D Homo sapiens
  • E Homo habilis

Q10:

Scientists date stone tools using the surrounding sediment of where the tool was found and not the stone tool itself. Why is that?

  • AThe stone may have existed for many years before it was made into a tool.
  • BThe stone tool could be contaminated with substances that will give an incorrect date.
  • CThere is no scientific way to accurately date stones.
  • DStone tools often biodegrade over time and so are difficult to extract from the ground.

Q11:

Choose the statement that correctly describes how tools used by hominins have changed over time.

  • AThe sophistication of stone tools has not changed over time.
  • BThe older the stone tool, the more advanced it is.
  • CThe more recent the stone tool, the more advanced it is.

Q12:

Choose the statement that correctly describes how the posture of human ancestors has changed over time.

  • AThe more recent the skeleton, the more curved the spine.
  • BAll human ancestors through time have had the same-shaped spine.
  • CThe more recent the skeleton, the straighter the spine.

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