OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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That organism has evolved
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That organism is extinct
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That organism is awesome
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That organism is the common ancestor
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Detailed explanation-1: -The horizontal lines are branches and represent evolutionary lineages changing over time. The branch length represents the evolutionary time between two nodes.
Detailed explanation-2: -A phylogenetic tree may represent the full diversity of life springing from our universal common ancestor (as does the tree above) or a single branch of the full tree of life, such as the vertebrate, fungus, or beetle lineages. Trees may include both extant and extinct organisms.
Detailed explanation-3: -A branch is called an edge, and represents the time estimate of the evolutionary relationships among the taxonomic units. One branch can connect only two nodes. In a phylogenetic tree, the terminal nodes represent the operational taxonomic units (OTUs) or leaves.
Detailed explanation-4: -The vertical lines, called branches, represent a lineage, and nodes are where they diverge, representing a speciation event from a common ancestor. The trunk at the base of the tree, is actually called the root. The root node represents the most recent common ancestor of all of the taxa represented on the tree.