Although extinction is a natural process, current extinctions are of concern to environmentalists because ________.
A) more animals than ever before are going extinct
B) most current extinctions are caused by introduced species
C) the rate of extinction is higher than background extinction rates
D) current extinction is primarily affecting plant diversity
Correct Answer:
Verified
Q22: Community resistance refers to _.
A) the ability
Q23: Looking at the accompanying figure, what can
Q24: Q25: The most serious consequence to humans of Q26: Approximately what percentage of bird species are Q28: Which of the following is a regulating Q29: Which of the following have an impact Q30: Which of the following is a provisioning Q31: Community stability refers to _. Q32: 
A) the ability
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