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Edexcel A-Level Biology AS 4.15 Variety of Life and Human Threats Questions

Name the anthropogenic pressure, trace its effect on habitat, food or reproduction and support the resulting population or extinction conclusion with case data.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
AS

Exam points

  • Explain a named human activity through habitat damage and population decline.
  • Link habitat fragmentation, hunting or prey loss to increased extinction risk.
  • Calculate or interpret habitat-loss evidence with standard form and units.

Edexcel A-Level Biology AS 4.15 Variety of Life and Human Threats Questions question 1

[Maximum number: 1]

The photograph shows a mother and baby Malayan tapir (Tapirus indicus). They live in the rainforests of southeast Asia. Each gamete of a Malayan tapir contains 26 chromosomes.

Figure for Question Edexcel A-Level Biology AS 4.15 Variety of Life and Human Threats Questions question 1 — Edexcel A-Level Biology AS

© Sipa US / Alamy Stock Photo

The map shows the change in distribution of the Malayan tapir over the past 20 years.

Figure for Question Edexcel A-Level Biology AS 4.15 Variety of Life and Human Threats Questions question 1 — Edexcel A-Level Biology AS

One difference is that the distribution has reduced due to human activity. Suggest one reason why human activity has caused this change in distribution. ```

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