Multiple Choice
The rate at which extinctions occurred prior to the evolution of modern humans is called the ____.
A) E.O.Wilson postulate
B) species diversity index
C) living planet index
D) baseline extinction rate
E) background extinction rate
Correct Answer:
Verified
Correct Answer:
Verified
Q35: _ occurs when the population of a
Q36: Throughout the 3.5 billion year history of
Q37: Which effect below is not a result
Q38: If estimates of an extinction rate 10,000
Q39: Worldwide,approximately 2,500 species are listed as endangered
Q41: Some people believe it is unethical to
Q42: Biodiversity experts estimate that during this century,the
Q43: The passenger pigeon,perhaps the must abundant bird
Q44: The species-area relationship suggests that,on average,a 90%
Q45: Population declines among birds,especially long-distance migrant birds,have