16.A major overall problem with this flawed depiction of mammal phylogeny is tha

Question

16.A major overall problem with this flawed depiction of mammal phylogeny is that it a. shows extant species at ancestral nodes. e extant lineages low down on the tree, with other extant lineages higher up on only three shows a single trunk leading to primates with other lineages "branching off C. shows the page d. shows e. ALL of the abovee major lineages of extant mammals, whereas there should be four 17. Some of the relationships implied by this tree are now known based on both DNA and holoy to be incorrect. We now know that the bats are closely related to primates. ver,on this tree, the lineage shown as the closest relatives to the bats are the: a. Insectivora d. Proboscidae e. NONE of the above. b. Artiodactyla c. Carnivora 18. Note the two lineages that are depicted down in the lower with where you would be placed). Why did Dr. Omland suggest lineages might be considered "lower" or "primitive" right. (Contrast that position that these and other similar a. Such lineages frequently have fewer species than lineages that are considered *a or "more evolved" b. Such lineages differ in a few characteristics that humans consider important (in this case different reproductive strategies). c. Such lineages diverged from the main branch sooner than other lineages on the tree. d. BOTH A and B e. BOTH B and C 19. The Eutherians, Marsupials and Monotremes are depicted as diverging from each other rapidly in a burst of speciation. However, molecular and morphological data now indicate that and__are likely sister lineages that likely diverged from each other roughlym a. Monotremes and Eutherians, 65 MYA b. Eutherians and Marsupials, 160 MYA c. Monotremes and Eutherians, 300 MYA d. Eutherians and Marsupials, 65 MYA e. Eutherians and Monotremes, 180 MYA

Explanation / Answer

19. (B) Eutherians and marsupials are likely sister lineages that likely diverged from each other roughly 160 million years ago.

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