The diagram shows the skeletal system of two ancestors of modern human beings.

The diagram shows the skeletal system of two ancestors of modern human beings.
IELTS Writing Task Chart for The diagram shows the skeletal system of two ancestors of modern human beings.
In
this
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diagram, variations in the skeletal systems of two early types of humans are described.
Overall
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, we can see that Australopithecus afarensis had a heavier body and much longer arms,
while
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homo
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erectus
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was slimmer and had more developed joints.
To begin
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with the upper half of the body, Australopithecus afarensis had a much broader chest and waist than
homo
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erectus
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, giving it a rounder appearance. The former had much longer arms and larger hands, which would have been useful for climbing trees.As for the lower half of the body, we can see that
homo
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erectus
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had proportionately longer legs and larger hip, knee and ankle joints. The feet of
homo
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erectus
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were
also
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smaller and more arched, with shorter toes. These differences meant that
homo
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erectus
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was better suited to long-distance running.We can see significant changes in the development of early humans from the diagram.
Homo
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erectus
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is more similar to contemporary human beings with its long legs and arched feet. The physical differences are clearly related to differences in the lifestyles of tree climbers and endurance runners.

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Vocabulary: Replace the words homo, erectus with synonyms.
Vocabulary: Rephrase the word "undefined" in your introduction.
Vocabulary: Only 5 basic words for charts were used.
Vocabulary: The word "diagram" was used 2 times.
Vocabulary: The word "differences" was used 3 times.
Vocabulary: Use several vocabularies to present the data in the second paragraph.
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