GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a prey species
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a similar species
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a common ancestor
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the previous generation of a population
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a new species
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Detailed explanation-1: -Explanation: The point where two branches meet on a phylogenic tree represents a species that is a common ancestor of all the “branch” species that meet at that point. The branching represents the development of new species.
Detailed explanation-2: -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.
Detailed explanation-3: -Branches come together at branching points called nodes. Each nodes represents a common ancestor shared by two or more terminal taxa.
Detailed explanation-4: -The pattern of branching in a phylogenetic tree reflects how species or other groups evolved from a series of common ancestors. In trees, two species are more related if they have a more recent common ancestor and less related if they have a less recent common ancestor.
Detailed explanation-5: -The tree includes the most recent common ancestor of all living species of bears (branch point 1).