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Describe, for each component of the Milky Way Galaxy labeled in the figure below, the typical heavy-element abundances found in that region, and what causes that region to have those abundances.
Wrist Bones
The small bones that make up the human wrist, contributing to its complex range of motion and dexterity.
Tree Topology
The arrangement of nodes and branches in a phylogenetic tree, representing the relationships among various evolutionary lineages.
Exaptation
A process in which a feature acquires a function that was not acquired through natural selection for its current use.
Fossil Record
The total number of fossils that have been discovered, as well as the information derived from them, offering a chronological account of the history of life on Earth.
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