In the Darwinian view, at each fork of the evolutionary tree is an ancestor common to all lines branching from that:
Correct answer: D. Fork
- A. Tree
- B. Stem
- C. Trunk
- D. Fork
Explanation
In the Darwinian view, the evolutionary history of life is often depicted as a tree, where the main trunk represents the common ancestry of all life. As you move up the tree, branches form, representing evolutionary divergence. Each 'fork' in this tree represents a point where a common ancestor split into different evolutionary paths. This is why 'fork' is the correct answer. The other options-'tree',' 'stem,' and ''trunk'-refer to different parts of the structure that do not specifically denote a divergence point.
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About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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