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A phylogenetic tree is a diagram depicting the evolutionary relationships between organisms and is constructed based on differences or similarities. The branching point or node represents the point where the lineages diverge, and the length of each branch depicts the number of accumulated mutations. In evolutionary biology, the phylogenic tree indicates the evolutionary relationship among the group of organisms it is called taxa. Two descendants that diverge from the same node are called sister groups Cladograms show common ancestors between different species and how recently in time the species diverged from one another. The degree of the arrangement of the molecular structures (DNA sequence) is high/same in closely related organisms, whereas the degree of arrangement is dissimilar or low in distantly related organisms.
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The given phylogenetic tree is as follows Speciation event (most common ancestor of humans and chimpanzee) Mouseinue history Trout Earthworm Rose Branch Gareen alga Node Root erumTaxon Basal lineage (Common ancestor) Ancestors Present-day species Therefore, The single branch for bacterium could be expanded to show the relationships of many species of bacteria.True This tree shows that a bacterium is the lowest form of life False The bacteria that are alive today are the common ancestors of all other organisms. False This tree could be rotated so that the branch for bacterium is on the top rather than the bottom of the tree True This tree shows that bacteria evolve into green algae, which evolve into plants, and so on. False Less evolution occurs in the long branches than occurs in the short branches. False
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