It is estimated that $$$40 \%$$$ of plant species are at risk of extinction. Seed banks can store seeds from many species for a long time. Table 6.1 shows some information about one plant species that is stored in a seed bank. Describe why conservation projects such as seed banks are important.

Biology

IGCSE&ALevel

CAIE

Exam No：0610_s23_qp_43 Year：2023 Question No：6(b)(iii)

Answer:

Knowledge points:

21.4.1 Define a sustainable resource as one which is produced as rapidly as it is removed from the environment so that it does not run out

21.4.10 Explain that sustainable development requires:

21.4.11 management of conflicting demands

21.4.12 planning and co-operation at local, national and international levels

21.4.13 Explain the risks to a species if the population size drops, reducing variation (knowledge of genetic drift is not required)

21.4.14 Explain reasons for conservation programmes, to include: – reducing extinction – protecting vulnerable environments – maintaining ecosystem functions, limited to nutrient cycling and resource provision, e.g. food, drugs, fuel and genes

21.4.2 Explain the need to conserve non-renewable resources, limited to fossil fuels

21.4.3 State that some resources can be maintained, limited to forests and fish stocks

21.4.4 State that products can be reused or recycled, limited to paper, glass, plastic and metal

21.4.5 Outline how sewage is treated to make the water that it contains safe to return to the environment or for human use

21.4.6 Explain why organisms become endangered or extinct, limited to climate change, habitat destruction, hunting, pollution and introduced species

21.4.7 Describe how endangered species can be conserved, limited to monitoring and protecting species and habitats, education, captive breeding programmes and seed banks

21.4.8 Define the term sustainable development as development providing for the needs of an increasing human population without harming the environment

21.4.9 Explain how forests and fish stocks can be sustained using education, legal quotas and restocking

It is estimated that $$\(40 \%\)$$ of plant species are at risk of extinction. Seed banks can store seeds from many species for a long time. Table 6.1 shows some information about one plant species that is stored in a seed bank. Describe why conservation projects such as seed banks are important.

Answer:

Knowledge points:

Solution:

It is estimated that $$\(40 \%\)$$ of plant species are at risk of extinction. Seed banks can store seeds from many species for a long time. Table 6.1 shows some information about one plant species that is stored in a seed bank. Describe why conservation projects such as seed banks are important.

Answer:

Knowledge points:

Solution:

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