The following plants were presented to a quarantine office in Australia as part of a shipment of plants entering Australia for the plant nursery trade - HSC - SSCE Biology - Question 11 - 2018 - Paper 1
Question 11
The following plants were presented to a quarantine office in Australia as part of a shipment of plants entering Australia for the plant nursery trade.
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A photogra... show full transcript
Worked Solution & Example Answer:The following plants were presented to a quarantine office in Australia as part of a shipment of plants entering Australia for the plant nursery trade - HSC - SSCE Biology - Question 11 - 2018 - Paper 1
Step 1
A. Plant W can enter Australia as it looks like it has 'black spot' which already occurs in Australia.
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Answer
This statement is incorrect. While 'black spot' might be present in Australia, the quarantine office must assess the specific strain and its impact on local flora.
Step 2
B. Plant X can enter Australia as it is unlikely the disease it has will transfer to Australian species.
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Answer
This is misleading. Any disease present must be carefully evaluated before allowing the entry of Plant X to prevent potential harm to local ecosystems.
Step 3
C. Plant Y cannot enter Australia as it has a disease caused by shortage of soil magnesium.
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Answer
This statement accurately reflects the quarantine office's concerns regarding the introduction of diseases that may impact local species.
Step 4
D. Plant Z cannot enter Australia because its appearance suggests it may be carrying vines.
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Answer
This suggests a potential threat and indicates that Plant Z should be prohibited from entering to avoid the risk of introducing invasive species.
