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22 Cards in this Set
- Front
- Back
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What is sustainability? |
Using resources in a way that meets the needs of the present generation without depleting resources for future generations. |
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What are renewable resources? |
Resources that can be used indefinitely without being completely used up. |
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What products can be made from plant fibres? |
Ropes and fabrics |
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What are the advantages of using plant fibres instead of oil? |
• Crops can be regrown - sustainable • Biodegradeable • Easier to grow and process than extracting oil. • Cheaper • Can be used in developing countries as less technology and expertise needed. |
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What is a disadvantage of using plant fibres rather than oil-based products? |
Plant fibres aren't as strong as plastics. |
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What products can be made from starch? |
• Plant-based plastics - bioplastics • Bioethanol |
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What are the advantages of using starch rather than fossil fuels? |
Sustainable |
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What does a seedbank do? |
Stores seeds to conserve biodiversity and genetic diversity? |
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What does the work of seed banks include? |
• Creating the cool, dry conditions required for storage. • Testing seeds for viability (ability to grow). • Planting seeds, growing and harvesting new seeds. |
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What are the advantages of seed banks? |
• Cheaper to store seeds than plants • More seed can be stored • Less labour required • Can be stored in any cool, dry place • Less likely to be damaged. |
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What are the disadvantages of seed banks? |
• Viability testing is expensive and time consuming. •Too expensive to store all seed types. • Difficult to collect seeds from remote locations. |
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How do seed banks help to conserve biodiversity? |
Seeds from endangered or extinct species, seeds can be used to grow new plants - can reintroduce plants into their natural habitat. |
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How do seed banks help to conserve genetic diversity? |
Can store a range of seeds from one species containing lots of different alleles. |
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What are captive-breeding programmes? |
The breeding of animals in controlled environments |
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What is an advantage of captive breeding programmes? |
Can increase the numbers of endangered/wild extinct species by breeding them in zoos. |
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What are some disadvantages of captive breeding programmes? |
• Some animals struggle breeding outside their natural habitat which can be hard to recreate. • Keeping animal captive might be considered cruel. |
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What are the advantages of reintroduction programmes? |
• Increases numbers of endangered plants and animals in the wild. • Contributes to the restoration of lost habitats or damaged ecosystems • Helps organisms who rely on these plants and animals for food or as part of the habitat. |
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What problems could arise from the reintroduction of a species to its habitat? |
• Could bring new diseases • May not have expected behaviour - problems finding food or problems communicating with wild population. |
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How do seed banks contribute to scientific research? |
• The use of different species of plant for medicinal uses, new crops, and new materials. • Can study how plant species can be successfully grown which helps during reintroduction. |
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How do seed banks contribute to education? |
Provide training all over the world. |
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How do zoos contribute to education? |
• Increase enthusiasm of the public by allowing them close to wildlife. • Raises public awareness and interest in conserving biodiversity. |
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How do zoos contribute to scientific knowledge? |
Provide knowledge on behaviour, physiology and nutritional needs of animals. |
