Question 65

(Multiple Choice)

The following questions refer to the description below.
You have read that soapberry bugs,Jadera haematoloma,adapt to available food sources.For example,in southern Florida,soapberry bugs feed on seeds of a native plant,the balloon vine.In central Florida,the balloon vine is rare and soapberry bugs have switched to eating seeds of an introduced species,the goldenrain tree.The seeds of the goldenrain tree fruits are much closer to the fruit surface than the seeds of the native balloon vine fruit.As a result,natural selection results in beaks that are shorter in soapberry bugs that utilize goldenrain tree fruits than those that feed on balloon vine fruit seeds.
-Which of the following is not an observation or inference on which natural selection is based?


A)There is heritable variation among individuals.
B)Poorly adapted individuals never produce offspring.
C)Species produce more offspring than the environment can support.
D)Individuals whose characteristics are best suited to the environment generally leave more offspring than those whose characteristics are less well suited.
E)Only a fraction of an individual's offspring may survive.

Answer