Question 1

What is NCEA AS 91606 about?

Accepted Answer

This standard asks you to explain how humans and our ancestors evolved over time, looking at the physical changes (like how we learned to walk upright), brain development, and the tools and behaviours that helped us survive. You need to connect evidence from different areas—bones, tools, migration patterns—to show how and why humans changed from earlier species.

Question 2

What do students need to do for AS 91606?

Accepted Answer

1. Describe the skeletal adaptations that enabled bipedalism (pelvis, knee, femur) and explain how these features provided energy advantages or disadvantages 2. Explain the positive feedback loop between hand evolution, tool use, nutrition, and brain growth in human development 3. Link selection pressures (like climate change and resource scarcity) to the evolution of specific hominin traits 4. Discuss the Out of Africa hypothesis, including two waves of migration and the evolution of H. sapiens before dispersal 5. Connect anatomical, behavioural, and cultural evidence together to show how and why humans evolved, rather than listing changes separately

Question 3

What's the difference between Achieved, Merit, and Excellence for AS 91606?

Accepted Answer

Achieved: You describe bipedal adaptations and cultural features like tools and shelter, and you attempt all three questions with relevant facts and definitions. Merit: You explain how key features like hand changes and abstract thought provided survival advantages, and you link some ideas together (like climate change to bipedalism or tools to brain growth), but you don't fully integrate all the pieces across the whole question. Excellence: You discuss the skeletal details of bipedalism with clear advantages and disadvantages, explain the entire feedback loop between hands, tools, nutrition and brains, connect geography and adaptation to dispersal patterns, and weave together anatomical, behavioural and cultural evidence to show a coherent story of how and why humans evolved.

Question 4

What mistakes do students typically make in AS 91606?

Accepted Answer

1. Stating that bipedal features increased energy efficiency without explaining the actual mechanism of how—you need to explain the 'how' not just the 'what' 2. Missing the positive feedback loop between tool use, food access, and brain growth, or including only part of it (often forgetting hand changes) 3. Overlooking the 'and' in bullet points (e.g. writing about 'clothing or shelter' instead of explaining both together, or mixing up 'inbreeding and specialised adaptation' with 'interbreeding')

Human evolution

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