Exam 18: Systematics: Seeking Order Amidst Diversity

DNA analysis reveals that two species of birds appear to have evolved from a common ancestor. These two species belong to the same:

Throughout the history of taxonomy, what characteristic was most commonly used for determining species relationships?

________ results in similar anatomical features between unrelated organisms that may be misleading in determining species relationships.

Systematics holds that the more similar the DNA of two organisms, the more closely related they are. True or False?

Once an organism is placed in a specific species, the designation cannot be changed. True or False?

Eukaryotes that are not plants, animals, or fungi are classified as ________.

-Based on the eukaryotic tree, Gymnosperms are most closely related to:

All organisms that are derived from a single common ancestor make up a clade. True or False?

How did Darwin's evolutionary theory change the significance of the taxonomic categories of organisms?

The most powerful way to infer evolutionary relationships relies on which type of evidence?

The second of the two names in an organism's scientific name is the ________.

-Based on the evolutionary tree, which organism's species split earliest from other members of the clade?

Systematists use synapomorphies to build phylogenetic trees. True or False?

Modern systematics constructs clades and evolutionary relationships based on:

Which of the following is the correct way to write the scientific name of the wolf?

Who was the Swedish naturalist who established the modern system for classifying organisms?

Who introduced the "two-part" system (genus and species)that biologists use to name organisms?

Why are Archaea and Bacteria different domains? Aren't they both prokaryotes?

Monophyletic groups contain all the species that evolved from a common ancestor. True or False?

How can DNA tell you how closely related two organisms are?