The question refers to the following table, which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species. Each part is numbered to indicate its distance from the promoter (for example, Intron I is the one closest to the promoter). The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A.

Regarding these sequence homology data, the principle of maximum parsimony would be applicable in ________.

#Question id: 11252

#Unit 10. Ecological Principles

A populations of scale insects exhibited superior survival when transplanted within, rather than between, ponderosa pine trees. Variation in antiherbivore defenses among individual ponderosa pines thus appears to be paralleled by variation in genotypes of the scale insects that infest them. If this is the case, then the experiment demonstrates __________.

#Question id: 11253

#Unit 10. Ecological Principles

Experiments conducted by Francisco Ayala with fruit flies and by David Pimentel with houseflies and blowflies have demonstrated the rather interesting phenomenon that __________.

#Question id: 11254

#Unit 10. Ecological Principles

Character displacement:

#Question id: 11255

#Unit 10. Ecological Principles

Antiherbivore defenses in Umbelliferous plants and the insects feeding on these plants has shown that:

#Question id: 11256

#Unit 10. Ecological Principles

Inferences built on the idea that evolutionarily older and younger characters should be found among close relatives if they are linked by evolution has been elaborated into a branch of evolutionary biology known as __________.

#Question id: 11257

#Unit 10. Ecological Principles

Close examination of the yucca-yucca moth mutualism has shown that what appear to be coevolved traits may have been __________ that were critical to the establishment of the mutualism in the first place.