International A Level Biology / Biodiversity and conservation

Conservation: zoos and seed banks

Edexcel International A Level Biology (YBI11), chapter 12: Biodiversity and conservation, specification point 4.21. Part of the full course.

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Zoos and seed banks help conserve endangered species and the alleles they carry. Their methods have benefits and limits, so conservation plans must protect genetic diversity as well as species numbers.

More lessons in Biodiversity and conservation

• Biodiversity and endemism
• Species richness and the heterozygosity index
• The index of diversity
• Niches and adaptations
• The Hardy-Weinberg equation
• Changing allele frequencies: mutation and natural selection
• Reproductive isolation and new species