BSC2011 Chapter 56 Final Exam Study
Test.
A) Genes for traits conferring an advantage to local conditions make microevolution possible. - CORRECT
ANSWER What is the biological significance of genetic diversity between populations?
A) Genes for traits conferring an advantage to local conditions make microevolution possible.
B) The population that is most fit would survive by competitive exclusion.
C) Genetic diversity allows for species stability by preventing speciation.
D) Diseases and parasites are not spread between separated populations.
D) only II and III - CORRECT ANSWER Which of the following statements regarding extinction is (are)
correct?
I) Only a small percentage of species is immune from extinction.
II) Extinction occurs whether humans interfere or not.
III) Extinctions can even be caused indirectly by humans.
A) only I
B) only II
C) only III
D) only II and III
B) tropical rain forest - CORRECT ANSWER Which of the following ecological locations has the greatest
species diversity?
A) deciduous forests
B) tropical rain forest
, C) grasslands
D) islands
C) high rate of extinction - CORRECT ANSWER Which of the following provides the best evidence of a
biodiversity crisis?
A) the incursion of a non-native species
B) increasing pollution levels
C) high rate of extinction
D) climate change
D) I, II, and III - CORRECT ANSWER We should care about loss in biodiversity in other species because of
_____.
I) potential loss of medicines and other products yet undiscovered from threatened species
II) potential loss of genes, some of which may code for proteins useful to humans
III) the risk to global ecological stability
A) only I
B) only II
C) only II and III
D) I, II, and III
D) habitat destruction - CORRECT ANSWER Which of the following is the most direct threat to
biodiversity?
A) increased levels of atmospheric carbon dioxide
B) the depletion of the ozone layer
C) overexploitation of selected species
D) habitat destruction
Test.
A) Genes for traits conferring an advantage to local conditions make microevolution possible. - CORRECT
ANSWER What is the biological significance of genetic diversity between populations?
A) Genes for traits conferring an advantage to local conditions make microevolution possible.
B) The population that is most fit would survive by competitive exclusion.
C) Genetic diversity allows for species stability by preventing speciation.
D) Diseases and parasites are not spread between separated populations.
D) only II and III - CORRECT ANSWER Which of the following statements regarding extinction is (are)
correct?
I) Only a small percentage of species is immune from extinction.
II) Extinction occurs whether humans interfere or not.
III) Extinctions can even be caused indirectly by humans.
A) only I
B) only II
C) only III
D) only II and III
B) tropical rain forest - CORRECT ANSWER Which of the following ecological locations has the greatest
species diversity?
A) deciduous forests
B) tropical rain forest
, C) grasslands
D) islands
C) high rate of extinction - CORRECT ANSWER Which of the following provides the best evidence of a
biodiversity crisis?
A) the incursion of a non-native species
B) increasing pollution levels
C) high rate of extinction
D) climate change
D) I, II, and III - CORRECT ANSWER We should care about loss in biodiversity in other species because of
_____.
I) potential loss of medicines and other products yet undiscovered from threatened species
II) potential loss of genes, some of which may code for proteins useful to humans
III) the risk to global ecological stability
A) only I
B) only II
C) only II and III
D) I, II, and III
D) habitat destruction - CORRECT ANSWER Which of the following is the most direct threat to
biodiversity?
A) increased levels of atmospheric carbon dioxide
B) the depletion of the ozone layer
C) overexploitation of selected species
D) habitat destruction
