Question

Which of the following would be most vulnerable to extinction?
A) a moth, brought to Canada for silk production, escaping into the wild and becoming established
B) an orchid endemic to an area where logging is occurring
C) Atlantic salmons brought to the salmon farms on the Pacific Coast of Canada and escaping from the cages.
D) a migratory flock of warblers stopping along its winter route to feed on local resources that are now gone and replaced by a suburb
E) a mould that attacks wheat in a field

Answer

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