The data in this graph indicate
A) there were fewer total tough seeds in 1976 than in 1977.
B) plants that produced soft seeds in 1976 produced tougher seeds in 1977.
C) available seeds were generally tougher in 1977 than in 1976.
D) seed abundance in 1977 was severely reduced by finch feeding.

Question

The data in this graph indicate 
A) there were fewer total tough seeds in 1976 than in 1977. 
B) plants that produced soft seeds in 1976 produced tougher seeds in 1977. 
C) available seeds were generally tougher in 1977 than in 1976. 
D) seed abundance in 1977 was severely reduced by finch feeding.

Quizplus · Accepted Answer

The graph shows that the average beak depth of the finches increased from 1976 to 1977, indicating that the available seeds were generally tougher in 1977 than in 1976.

The Data in This Graph Indicate