#Question id: 9613
#Unit 9. Diversity of Life Forms
Which of the following pairs are the best examples of homologous structures?
#Question id: 9614
#Unit 9. Diversity of Life Forms
Some molecular data place the giant panda in the bear family (Ursidae) but place the lesser panda in the raccoon family (Procyonidae). Consequently, the morphological similarities of these two species are probably due to
#Question id: 9615
#Unit 9. Diversity of Life Forms
In angiosperm plants, flower morphology can be very intricate. If a tree, such as a New Mexico locust, has flowers that share many morphological intricacies with flowers of the sweet pea vine, then the most likely explanation for these floral similarities is the same general explanation for the similarities between the
#Question id: 9616
#Unit 9. Diversity of Life Forms
Which mutation should least require realignment of homologous regions of a gene that is common to several related species?
#Question id: 9617
#Unit 9. Diversity of Life Forms
The common ancestors of birds and mammals were very early (stem) reptiles, which almost certainly possessed 3-chambered hearts (2 atria, 1 ventricle). Birds and mammals, however, are alike in having 4-chambered hearts (2 atria, 2 ventricles). The 4-chambered hearts of birds and mammals are best described as
#Question id: 9618
#Unit 9. Diversity of Life Forms
Generally, within a lineage, the largest number of shared derived characters should be found among two organisms that are members of the same