Examlex
Simplify the expression. Write the answer without using negative exponents. Assume that the variable is restricted to those numbers for which the expression is defined.
Phylogenetic Systematics
A method of classifying organisms based on their evolutionary relationships, utilizing genetic, morphological, and other data to infer a "family tree" of life.
Dinosaur Genera
Categories in the classification of dinosaurs, where each genus comprises one or more species that are closely related.
Monophyletic Clade
A Monophyletic Clade is a group of organisms that consists of a single common ancestor and all its descendants, representing a complete branch on the tree of life.
Lobe-Finned Fish
A group of fishes characterized by fleshy, lobed, paired fins, which are precursors to the limbs of terrestrial vertebrates.
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