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.
  • BBrain size and tool development are not thought to be linked.
  • CThe larger the brain, the less advanced the tools.

Q2:

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

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

Q3:

Which ancestor of humans existed around 2.4 million years ago?

  • AAustralopithecus afarensis (Lucy)
  • BHomo erectus
  • CHomo habilis
  • DArdipithecus ramidus (Ardi)
  • EHomo sapiens

Q4:

Which ancestor of humans existed around 3.2 million years ago?

  • AHomo erectus
  • BAustralopithecus afarensis (Lucy)
  • CHomo sapiens
  • DArdipithecus ramidus (Ardi)
  • EHomo habilis

Q5:

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

  • AHomo sapiens
  • BHomo habilis
  • CAustralopithecus afarensis (Lucy)
  • DHomo erectus
  • EArdipithecus ramidus (Ardi)

Q6:

Which ancestor of humans existed around 4.4 million years ago?

  • AAustralopithecus afarensis (Lucy)
  • BHomo erectus
  • CArdipithecus ramidus (Ardi)
  • DHomo sapiens
  • EHomo habilis

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.
  • CHomo sapiens were better adapted for the environment and outcompeted Homo neanderthalensis.
  • DHomo sapiens were less adapted for the environment and were outcompeted by Homo neanderthalensis.

Q8:

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

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

Q9:

Which ancestor of humans existed around 1.8 million years ago?

  • AHomo habilis
  • BArdipithecus ramidus (Ardi)
  • CHomo erectus
  • DAustralopithecus afarensis (Lucy)
  • EHomo sapiens

Q10:

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

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

Q11:

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

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

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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