Podcast
Questions and Answers
What do phylogenies represent?
What do phylogenies represent?
- Evolutionary relationships (correct)
- Nutritional habits of the organisms
- Geographic distribution of species
- Size of the organisms
Which term refers to the most recent species that all organisms in a phylogeny descended from?
Which term refers to the most recent species that all organisms in a phylogeny descended from?
- Root
- Node
- Sister Group
- Last Common Ancestor (correct)
What does a root represent in a phylogenetic tree?
What does a root represent in a phylogenetic tree?
- The last common ancestor of all groups in the tree (correct)
- The geographic location of the species
- The branching point of two species
- The taxonomical group at the end of a branch
How are sister groups defined in a phylogenetic tree?
How are sister groups defined in a phylogenetic tree?
What is the main focus of Linnaean classification in biology?
What is the main focus of Linnaean classification in biology?
What process leads to the formation of phylogenies?
What process leads to the formation of phylogenies?
What is the role of outgroups in constructing a phylogenetic tree?
What is the role of outgroups in constructing a phylogenetic tree?
Which method is used to choose the best solution for a phylogeny?
Which method is used to choose the best solution for a phylogeny?
What is the concept of 'molecular clocks' primarily based on?
What is the concept of 'molecular clocks' primarily based on?
Which term describes the last female common ancestor of all living people based on mitochondrial DNA sequences?
Which term describes the last female common ancestor of all living people based on mitochondrial DNA sequences?
What do fossils primarily preserve?
What do fossils primarily preserve?
How do DNA and RNA sequences contribute to constructing phylogenetic trees?
How do DNA and RNA sequences contribute to constructing phylogenetic trees?
What type of fossils occur when a dead organism leaves behind some of its biomolecules?
What type of fossils occur when a dead organism leaves behind some of its biomolecules?
Which species is closely related to humans and had its full genome sequenced in 2012?
Which species is closely related to humans and had its full genome sequenced in 2012?
What type of evidence indicates that Denisovans, Neanderthals, and Humans could produce hybrid offspring?
What type of evidence indicates that Denisovans, Neanderthals, and Humans could produce hybrid offspring?
Which of the following provides absolute dates for divergence events and includes transitional fossils of common ancestors?
Which of the following provides absolute dates for divergence events and includes transitional fossils of common ancestors?
What can phylogenies predict about different groups?
What can phylogenies predict about different groups?
What type of fossils mainly consists of small finger bone fragments and a few teeth in the case of Denisovans?
What type of fossils mainly consists of small finger bone fragments and a few teeth in the case of Denisovans?
What are features used in constructing phylogenetic trees called?
What are features used in constructing phylogenetic trees called?
Which of the following is true about homologous characters?
Which of the following is true about homologous characters?
Which level of classification is NOT included in the Linnaean classification system?
Which level of classification is NOT included in the Linnaean classification system?
What is the significance of the presence or absence of characters in constructing a phylogenetic tree?
What is the significance of the presence or absence of characters in constructing a phylogenetic tree?
Analogous characters are useful for phylogenetic trees when:
Analogous characters are useful for phylogenetic trees when:
What taxonomic level comes between orders and genera in Linnaean classification?
What taxonomic level comes between orders and genera in Linnaean classification?
What system for species classification was developed in the 1700s?
What system for species classification was developed in the 1700s?
Which of the following accurately describes binomial nomenclature?
Which of the following accurately describes binomial nomenclature?
What is the most specific part of a taxonomic name like Ursus americanus?
What is the most specific part of a taxonomic name like Ursus americanus?
Which method provides a way to genetically determine relatedness amongst species independently of their physical traits?
Which method provides a way to genetically determine relatedness amongst species independently of their physical traits?
What is always true about scientific names of organisms?
What is always true about scientific names of organisms?
Which system defines each taxonomic level by a specific set of traits that become more specific at each level?
Which system defines each taxonomic level by a specific set of traits that become more specific at each level?
What process involves an organism's hard tissues being replaced by rock through mineralization over time?
What process involves an organism's hard tissues being replaced by rock through mineralization over time?
How do trace fossils differ from molecular fossils?
How do trace fossils differ from molecular fossils?
What is one reason for the incomplete nature of the fossil record mentioned in the text?
What is one reason for the incomplete nature of the fossil record mentioned in the text?
In the context of the text, what do geologists learn from the unique chemical properties of rock layers?
In the context of the text, what do geologists learn from the unique chemical properties of rock layers?
What is one way organisms lacking hard parts can leave a fossil record, as mentioned in the text?
What is one way organisms lacking hard parts can leave a fossil record, as mentioned in the text?
How do plate tectonics and erosion contribute to the accessibility of fossils?
How do plate tectonics and erosion contribute to the accessibility of fossils?
What is one reason why the fossil record contains a small fraction of all organisms?
What is one reason why the fossil record contains a small fraction of all organisms?
'Mineralization preserve[s] the anatomy of the organism over very long periods of time.' What is another term for this process?
'Mineralization preserve[s] the anatomy of the organism over very long periods of time.' What is another term for this process?
'Only a small subset of organisms are fossilized when they die.' What contributes to this fact?
'Only a small subset of organisms are fossilized when they die.' What contributes to this fact?
