2020-BIO 150-lecture notes 3 PDF

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Professor Harsh...

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BIO150 Exam #2 Questions 1. Which of the following best characterizes adaptive radiation in this scenario? A. Speciation occurred rapidly, & the descendent hummingbird populations occupy a single large area B. Natural selection is particularly intense in the Andes, because disruptive selection occurs C. Speciation by adaptive radiation is a direct consequence of genetic drift beginning with the colonization of the Andes by the original hummingbird group D. A single lineage diversified rapidly, and the descendant hummingbird populations, occupy many habitats and ecological roles within the mountains 2. Based on the phylogenetic tree, choose the true statement about the evolutionary relationships: A. Fern is equally related to gingko and oak. B. Gingko is more closely related to oak than rose. C. Oak is equally related to rose and pine. D. Fern is more closely related to pine than to rose....