According to the text, ________ proportion of species in Canada are now alien?
A) 12 per cent
B) 7 per cent
C) 19 per cent
D) 3 per cent
Correct Answer:
Verified
Q12: Mature ecosystems are NOT characterized by _.
A)
Q13: Resilience is _.
A) the slow pace
Q14: Inertia is _.
A) the ability of an
Q15: Ecosystems with _ can best withstand human
Q16: Organisms found outside their normal range are
Q18: In Canada, _ species of alien plants
Q19: _ is an invasive species.
A) Purple loosestrife
B)
Q20: Allelopathic species _.
A) are usually animals
B) are
Q21: Canada has experienced a serious alien invasion
Q22: Sitka black-tailed deer were deliberately introduced to
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