Which of the following statements about human impacts on Australian ecosystems is true?
A) The rate of species extinction has levelled out.
B) Accelerated rates of extinction are expected particularly for birds.
C) Many species have declined in abundance but not in range.
D) While many bird species have become extinct, the impact of humans is not significant on the mammalian species.
E) All of the answers are true.
Correct Answer:
Verified
Q1: Australian bats and rodents
A) are unique because
Q2: Declines in abundance and range of native
Q3: What proportion of forests present when Europeans
Q5: One problem with identifying biodiversity hotspots is
Q6: Frugivorous cassowaries are threatened by rainforest clearing
Q7: Tropical rainforest covers
A) > 50 per cent
Q8: In rainforests,
A) gaps created by tree falls
Q9: In fragmented habitats
A) larger species of animal
Q10: In general, narrow remnant vegetation along roads
A)
Q11: Habitat corridors
A) promote the exchange of genes
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