Refer to the graph. "Collapsed" fish taxa are species or groups of species that have declined to less than 10 percent of the biomass they had before they were fished.These low numbers represent commercial extinction, or levels too low to produce a profit when those taxa are fished.Changes in the numbers of collapsed taxa since 1950 are shown in the graph.The trend shown indicates that
A) fish species are currently recovering from overharvesting.
B) the number of collapsing taxa is still tending to increase.
C) overharvesting is not a serious problem, since only 20 percent of taxa have collapsed.
D) improved technology, introduced about 1980, has solved the overharvesting problem.
E) top predator fish (such as tuna) are recovering, but smaller fish (such as herring) are not.

Question

Refer to the graph.  "Collapsed" fish taxa are species or groups of species that have declined to less than 10 percent of the biomass they had before they were fished.These low numbers represent commercial extinction, or levels too low to produce a profit when those taxa are fished.Changes in the numbers of collapsed taxa since 1950 are shown in the graph.The trend shown indicates that
A) fish species are currently recovering from overharvesting. 
B) the number of collapsing taxa is still tending to increase. 
C) overharvesting is not a serious problem, since only 20 percent of taxa have collapsed. 
D) improved technology, introduced about 1980, has solved the overharvesting problem. 
E) top predator fish (such as tuna) are recovering, but smaller fish (such as herring) are not.

Quizplus · Accepted Answer

The graph shows that the number of collapsed fish taxa has been on a general upward trend since 1950, indicating that overharvesting is still a serious problem. The other choices are not supported by the information in the graph.

Refer to the Graph