Question

chapter quiz: processes of evolution
total points: --/100
what is a phylogeny?

• a group whose members share one or more defining derived traits
• the process of making hypotheses about evolutionary relationships among clades
• the evolutionary history of a species or a group of species

Explanation:

Define the term phylogeny

A phylogeny represents the evolutionary history and relationships of a species or a group of species. It traces how organisms are connected through common ancestry over geological time, which is a key aspect of Macroevolution.

Analyze the first option

The first option describes "A group whose members share one or more defining derived traits." This is the definition of a clade or a monophyletic group, rather than phylogeny itself.

Analyze the second option

The second option describes "The process of making hypotheses about evolutionary relationships among clades." This process of reconstructing and studying these relationships is known as systematics or cladistics, which is the methodology used to discover a phylogeny, but not the phylogeny itself.

Analyze the third option

The third option states "The evolutionary history of a species or a group of species." This directly and accurately defines phylogeny, representing the actual evolutionary lineage and historical pathways of organisms.

Answer:

• (A) A group whose members share one or more defining derived traits
• (B) The process of making hypotheses about evolutionary relationships among clades
• (C) The evolutionary history of a species or a group of species (Correct answer)