IB Biology HL B4.2.8 Dentition and Diet in Family Hominidae Questions

Explore how jaw projection and tooth size distinguish Australopithecus from Homo erectus in the directly assessed Hominidae dentition evidence for IB Biology HL B4.2.8.

Exam points

Use a skull comparison to identify jaw projection/size and teeth-size differences between Australopithecus and Homo erectus, the directly assessed Hominidae dentition behaviour.

[Maximum number: 2]

The diagram shows the range of heights and brain sizes found in four groups of hominids.

Figure for Question IB Biology HL B4.2.8 Dentition and Diet in Family Hominidae Questions question 1 — IB Biology HL

State two ways, apart from brain volume, by which the skulls of the Australopithecus and H. erectus would differ in appearance.
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IB Biology HL B4.2.8 Dentition and Diet in Family Hominidae Questions question 1